Needing new parts and advice

I have an older HP desktop that I've upgraded the parts over time. I want to replace the motherboard and processor and get a new video card as well but the video card can come later.

I want to do this as inexpensive as possible I know it's going to be a tedious job. I need to know what parts I absolutely have to replace other than the motherboard and processor and what parts I can reuse.

I know sometimes it's easier and cheaper to just buy a new computer but I feel like I could fix this up decently just for me.

I can give basic specs or if there is something I can run and copy/past the info let me know.

Windows 7 64-bit, 8GB memory, 1TB Hard Drive, Nvidia Geforce GT 520 2 GB deadicated. I upgraded my power supply recently as well. Current motherboard Asus IPIBL-LB Benicia-GL8E

I also have "some" dxdiag info.

------------------
System Information
------------------
Time of this report: 4/7/2014, 16:57:05
Machine name: CHRISTINA-PC
Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.130828-1532)
Language: English (Regional Setting: English)
System Manufacturer: HP-Pavilion
System Model: KL649AV-ABA m9200t
BIOS: BIOS Date: 09/10/09 10:25:18 Ver: 5.43
Processor: Intel(R) Core(TM)2 Quad CPU Q6700 @ 2.66GHz (4 CPUs), ~2.7GHz
Memory: 8192MB RAM
Available OS Memory: 8192MB RAM
Page File: 2193MB used, 14187MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7601.17514 32bit Unicode

------------
DxDiag Notes
------------
Display Tab 1: No problems found.
Sound Tab 1: No problems found.
Sound Tab 2: No problems found.
Sound Tab 3: No problems found.
Input Tab: No problems found.

--------------------
DirectX Debug Levels
--------------------
Direct3D: 0/4 (retail)
DirectDraw: 0/4 (retail)
DirectInput: 0/5 (retail)
DirectMusic: 0/5 (retail)
DirectPlay: 0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow: 0/6 (retail)

---------------
Display Devices
---------------
Card name: NVIDIA GeForce GT 520
Manufacturer: NVIDIA
Chip type: GeForce GT 520
DAC type: Integrated RAMDAC
Device Key: Enum\PCI\VEN_10DE&DEV_1040&SUBSYS_301A1682&REV_A1
Display Memory: 4046 MB
Dedicated Memory: 1998 MB
Shared Memory: 2047 MB
Current Mode: 1920 x 1080 (32 bit) (60Hz)
Monitor Name: HYUNDAI IT 22 Wide Digital 16:9
Monitor Model: HDIT22W DVI
Monitor Id: IQT9D04
Native Mode: 1920 x 1080(p) (60.000Hz)
Output Type: HDMI
Driver Name: nvd3dumx.dll,nvwgf2umx.dll,nvwgf2umx.dll,nvd3dum,nvwgf2um,nvwgf2um
Driver File Version: 9.18.0013.3523 (English)
Driver Version: 9.18.13.3523
DDI Version: 11
Driver Model: WDDM 1.1
Driver Attributes: Final Retail
Driver Date/Size: 3/4/2014 09:35:23, 17755424 bytes
WHQL Logo'd: Yes
WHQL Date Stamp:
Device Identifier: {D7B71E3E-5300-11CF-F178-17101CC2C435}
Vendor ID: 0x10DE
Device ID: 0x1040
SubSys ID: 0x301A1682
Revision ID: 0x00A1
Driver Strong Name: oem85.inf:NVIDIA_SetA_Devices.NTamd64.6.1:Section030:9.18.13.3523ci\ven_10de&dev_1040
Rank Of Driver: 00E02001
Video Accel: ModeMPEG2_A ModeMPEG2_C ModeVC1_C ModeWMV9_C
Deinterlace Caps: {6CB69578-7617-4637-91E5-1C02DB810285}: Format(In/Out)=(YUY2,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive
{F9F19DA5-3B09-4B2F-9D89-C64753E3EAAB}: Format(In/Out)=(YUY2,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY
{5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(YUY2,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY
{335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(YUY2,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalStretch
{6CB69578-7617-4637-91E5-1C02DB810285}: Format(In/Out)=(UYVY,UYVY) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive
{F9F19DA5-3B09-4B2F-9D89-C64753E3EAAB}: Format(In/Out)=(UYVY,UYVY) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY
{5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(UYVY,UYVY) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY
{335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(UYVY,UYVY) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalStretch
{6CB69578-7617-4637-91E5-1C02DB810285}: Format(In/Out)=(YV12,0x32315659) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive
{F9F19DA5-3B09-4B2F-9D89-C64753E3EAAB}: Format(In/Out)=(YV12,0x32315659) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY
{5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(YV12,0x32315659) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY
{335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(YV12,0x32315659) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalStretch
{6CB69578-7617-4637-91E5-1C02DB810285}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive
{F9F19DA5-3B09-4B2F-9D89-C64753E3EAAB}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY
{5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY
{335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalStretch
{6CB69578-7617-4637-91E5-1C02DB810285}: Format(In/Out)=(IMC1,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{F9F19DA5-3B09-4B2F-9D89-C64753E3EAAB}: Format(In/Out)=(IMC1,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(IMC1,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(IMC1,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{6CB69578-7617-4637-91E5-1C02DB810285}: Format(In/Out)=(IMC2,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{F9F19DA5-3B09-4B2F-9D89-C64753E3EAAB}: Format(In/Out)=(IMC2,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(IMC2,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(IMC2,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{6CB69578-7617-4637-91E5-1C02DB810285}: Format(In/Out)=(IMC3,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{F9F19DA5-3B09-4B2F-9D89-C64753E3EAAB}: Format(In/Out)=(IMC3,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(IMC3,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(IMC3,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{6CB69578-7617-4637-91E5-1C02DB810285}: Format(In/Out)=(IMC4,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{F9F19DA5-3B09-4B2F-9D89-C64753E3EAAB}: Format(In/Out)=(IMC4,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(IMC4,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(IMC4,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{6CB69578-7617-4637-91E5-1C02DB810285}: Format(In/Out)=(S340,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{F9F19DA5-3B09-4B2F-9D89-C64753E3EAAB}: Format(In/Out)=(S340,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(S340,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(S340,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{6CB69578-7617-4637-91E5-1C02DB810285}: Format(In/Out)=(S342,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{F9F19DA5-3B09-4B2F-9D89-C64753E3EAAB}: Format(In/Out)=(S342,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{5A54A0C9-C7EC-4BD9-8EDE-F3C75DC4393B}: Format(In/Out)=(S342,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
{335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(S342,UNKNOWN) Frames(Prev/Fwd/Back)=(0,0,0) Caps=
D3D9 Overlay: Supported
DXVA-HD: Supported
DDraw Status: Enabled
D3D Status: Enabled
AGP Status: Enabled

-------------
Sound Devices
-------------
Description: Speakers (Realtek High Definition Audio)
Default Sound Playback: Yes
Default Voice Playback: Yes
Hardware ID: HDAUDIO\FUNC_01&VEN_10EC&DEV_0888&SUBSYS_103C2A6F&REV_1001
Manufacturer ID: 1
Product ID: 100
Type: WDM
Driver Name: RTKVHD64.sys
Driver Version: 6.00.0001.5910 (English)
Driver Attributes: Final Retail
WHQL Logo'd: Yes
Date and Size: 8/4/2009 10:50:58, 1973792 bytes
Other Files:
Driver Provider: Realtek Semiconductor Corp.
HW Accel Level: Basic
Cap Flags: 0xF1F
Min/Max Sample Rate: 100, 200000
Static/Strm HW Mix Bufs: 1, 0
Static/Strm HW 3D Bufs: 0, 0
HW Memory: 0
Voice Management: No
EAX(tm) 2.0 Listen/Src: No, No
I3DL2(tm) Listen/Src: No, No
Sensaura(tm) ZoomFX(tm): No

Description: Realtek Digital Output (Realtek High Definition Audio)
Default Sound Playback: No
Default Voice Playback: No
Hardware ID: HDAUDIO\FUNC_01&VEN_10EC&DEV_0888&SUBSYS_103C2A6F&REV_1001
Manufacturer ID: 1
Product ID: 100
Type: WDM
Driver Name: RTKVHD64.sys
Driver Version: 6.00.0001.5910 (English)
Driver Attributes: Final Retail
WHQL Logo'd: Yes
Date and Size: 8/4/2009 10:50:58, 1973792 bytes
Other Files:
Driver Provider: Realtek Semiconductor Corp.
HW Accel Level: Basic
Cap Flags: 0xF1F
Min/Max Sample Rate: 100, 200000
Static/Strm HW Mix Bufs: 1, 0
Static/Strm HW 3D Bufs: 0, 0
HW Memory: 0
Voice Management: No
EAX(tm) 2.0 Listen/Src: No, No
I3DL2(tm) Listen/Src: No, No
Sensaura(tm) ZoomFX(tm): No

Description: Realtek HDMI Output (Realtek High Definition Audio)
Default Sound Playback: No
Default Voice Playback: No
Hardware ID: HDAUDIO\FUNC_01&VEN_10EC&DEV_0888&SUBSYS_103C2A6F&REV_1001
Manufacturer ID: 1
Product ID: 100
Type: WDM
Driver Name: RTKVHD64.sys
Driver Version: 6.00.0001.5910 (English)
Driver Attributes: Final Retail
WHQL Logo'd: Yes
Date and Size: 8/4/2009 10:50:58, 1973792 bytes
Other Files:
Driver Provider: Realtek Semiconductor Corp.
HW Accel Level: Basic
Cap Flags: 0xF1F
Min/Max Sample Rate: 100, 200000
Static/Strm HW Mix Bufs: 1, 0
Static/Strm HW 3D Bufs: 0, 0
HW Memory: 0
Voice Management: No
EAX(tm) 2.0 Listen/Src: No, No
I3DL2(tm) Listen/Src: No, No
Sensaura(tm) ZoomFX(tm): No

---------------------
Sound Capture Devices
---------------------
Description: Microphone (Logitech Mic (QuickCam S5500))
Default Sound Capture: Yes
Default Voice Capture: Yes
Driver Name: USBAUDIO.sys
Driver Version: 6.01.7601.18208 (English)
Driver Attributes: Final Retail
Date and Size: 7/12/2013 05:40:58, 109824 bytes
Cap Flags: 0x1
Format Flags: 0xFFFFF

Description: DigitalIn (Realtek High Definition Audio)
Default Sound Capture: No
Default Voice Capture: No
Driver Name: RTKVHD64.sys
Driver Version: 6.00.0001.5910 (English)
Driver Attributes: Final Retail
Date and Size: 8/4/2009 10:50:58, 1973792 bytes
Cap Flags: 0x1
Format Flags: 0xFFFFF

------------------------
Disk & DVD/CD-ROM Drives
------------------------
Drive: C:
Free Space: 751.0 GB
Total Space: 943.7 GB
File System: NTFS
Model: WDC WD10EALS-00Z8A0

Drive: D:
Free Space: 1.4 GB
Total Space: 10.2 GB
File System: NTFS
Model: WDC WD10EALS-00Z8A0

Drive: E:
Model: TSSTcorp CDDVDW TS-H653N
Driver: c:\windows\system32\drivers\cdrom.sys, 6.01.7601.17514 (English), , 0 bytes

--------------
System Devices
--------------
Name: NVIDIA GeForce GT 520
Device ID: PCI\VEN_10DE&DEV_1040&SUBSYS_301A1682&REV_A1\4&13D7CD30&0&0008
Driver: n/a

Name: Intel(R) ICH9 Family USB2 Enhanced Host Controller - 293A
Device ID: PCI\VEN_8086&DEV_293A&SUBSYS_2A6F103C&REV_02\3&11583659&0&EF
Driver: n/a

Name: Intel(R) ICH9R LPC Interface Controller - 2916
Device ID: PCI\VEN_8086&DEV_2916&SUBSYS_2A6F103C&REV_02\3&11583659&0&F8
Driver: n/a

Name: High Definition Audio Controller
Device ID: PCI\VEN_10DE&DEV_0E08&SUBSYS_301A1682&REV_A1\4&13D7CD30&0&0108
Driver: n/a

Name: Intel(R) G33/G31/P35 Express Chipset PCI Express Root Port - 29C1
Device ID: PCI\VEN_8086&DEV_29C1&SUBSYS_00008086&REV_02\3&11583659&0&08
Driver: n/a

Name: Intel(R) ICH9 Family USB Universal Host Controller - 2939
Device ID: PCI\VEN_8086&DEV_2939&SUBSYS_2A6F103C&REV_02\3&11583659&0&EB
Driver: n/a

Name: Intel(R) ICH8R/ICH9R/ICH10R/DO SATA RAID Controller
Device ID: PCI\VEN_8086&DEV_2822&SUBSYS_2A6F103C&REV_02\3&11583659&0&FA
Driver: n/a

Name: Intel(R) G33/G31/P35 Express Chipset Processor to I/O Controller - 29C0
Device ID: PCI\VEN_8086&DEV_29C0&SUBSYS_2A6F103C&REV_02\3&11583659&0&00
Driver: n/a

Name: Intel(R) ICH9 Family USB Universal Host Controller - 2938
Device ID: PCI\VEN_8086&DEV_2938&SUBSYS_2A6F103C&REV_02\3&11583659&0&D1
Driver: n/a

Name: Intel(R) 82801 PCI Bridge - 244E
Device ID: PCI\VEN_8086&DEV_244E&SUBSYS_2A6F103C&REV_92\3&11583659&0&F0
Driver: n/a

Name: Intel(R) ICH9 Family PCI Express Root Port 3 - 2944
Device ID: PCI\VEN_8086&DEV_2944&SUBSYS_2A6F103C&REV_02\3&11583659&0&E2
Driver: n/a

Name: Intel(R) ICH9 Family USB Universal Host Controller - 2937
Device ID: PCI\VEN_8086&DEV_2937&SUBSYS_2A6F103C&REV_02\3&11583659&0&D0
Driver: n/a

Name: ViXS PureTV-U 48B0 (NTSC/ATSC Combo)
Device ID: PCI\VEN_1745&DEV_2100&SUBSYS_48B01043&REV_00\4&37C315F9&0&00E1
Driver: n/a

Name: Intel(R) ICH9 Family PCI Express Root Port 2 - 2942
Device ID: PCI\VEN_8086&DEV_2942&SUBSYS_2A6F103C&REV_02\3&11583659&0&E1
Driver: n/a

Name: Intel(R) ICH9 Family USB Universal Host Controller - 2936
Device ID: PCI\VEN_8086&DEV_2936&SUBSYS_2A6F103C&REV_02\3&11583659&0&EA
Driver: n/a

Name: LSI 1394 OHCI Compliant Host Controller
Device ID: PCI\VEN_11C1&DEV_5811&SUBSYS_2A6F103C&REV_70\4&3B75382B&0&28F0
Driver: n/a

Name: Intel(R) ICH9 Family PCI Express Root Port 1 - 2940
Device ID: PCI\VEN_8086&DEV_2940&SUBSYS_2A6F103C&REV_02\3&11583659&0&E0
Driver: n/a

Name: Intel(R) ICH9 Family USB Universal Host Controller - 2935
Device ID: PCI\VEN_8086&DEV_2935&SUBSYS_2A6F103C&REV_02\3&11583659&0&E9
Driver: n/a

Name: Realtek RTL8192CE Wireless LAN 802.11n PCI-E NIC
Device ID: PCI\VEN_10EC&DEV_8178&SUBSYS_817810EC&REV_01\4&282BB599&0&00E0
Driver: n/a

Name: High Definition Audio Controller
Device ID: PCI\VEN_8086&DEV_293E&SUBSYS_2A6F103C&REV_02\3&11583659&0&D8
Driver: n/a

Name: Intel(R) ICH9 Family USB Universal Host Controller - 2934
Device ID: PCI\VEN_8086&DEV_2934&SUBSYS_2A6F103C&REV_02\3&11583659&0&E8
Driver: n/a

Name: Realtek RTL8168C(P)/8111C(P) Family PCI-E Gigabit Ethernet NIC (NDIS 6.20)
Device ID: PCI\VEN_10EC&DEV_8168&SUBSYS_2A6F103C&REV_02\4&5D52B92&0&00E2
Driver: n/a

Name: Intel(R) ICH9 Family USB2 Enhanced Host Controller - 293C
Device ID: PCI\VEN_8086&DEV_293C&SUBSYS_2A6F103C&REV_02\3&11583659&0&D7
Driver: n/a

Name: Intel(R) ICH9 Family SMBus Controller - 2930
Device ID: PCI\VEN_8086&DEV_2930&SUBSYS_2A6F103C&REV_02\3&11583659&0&FB
Driver: n/a

---------------
EVR Power Information
---------------
Current Setting: {5C67A112-A4C9-483F-B4A7-1D473BECAFDC} (Quality)
Quality Flags: 2576
Enabled:
Force throttling
Allow half deinterlace
Allow scaling
Decode Power Usage: 100
Balanced Flags: 1424
Enabled:
Force throttling
Allow batching
Force half deinterlace
Force scaling
Decode Power Usage: 50
PowerFlags: 1424
Enabled:
Force throttling
Allow batching
Force half deinterlace
Force scaling
Decode Power Usage: 0

Anything else I need to provide or do let me know.

Actually yes I was already counting on buying a new windows 7 as for the one I have was an upgrade from windows vista.

Thank you.

I mainly need to know if I can reuse things like memory, cords/cables, power source, harddrive etc. etc.

I'm willing to buy for now the motherboard processor and of course operating system. Later would love to get a new video card.

I'm new at this and have only replaced things here and there and have never done a major rebuild or anything.

How can I see if my ram is DDR2 or DDR3 just for curiosity.

Do you think you could suggest an inexpensive setup for me? I like gaming. I have played Everquest II, Secondlife, Sims 2 & 3 (possibly 4 in the fall), Runes of Magic. etc. etc. I have also been accepted to beta test Elder Scrolls online and Everquest Next Landmark.
Everquest Next Landmark is the one giving me trouble at the moment my graphics card isn't strong enough to handle it. I don't want to drop more money on a graphics card right now though because other things like motherboard and processor are severely outdated considering.

Summerbear:

It's a near certainty that you have DDR2 memory on that HP PC.

You can download a free program called Belarc that will give much more detail on your hardware and software here:

Belarc Advisor - Free Personal PC Audit, for software, hardware and security configuration information on your computer. Software license management, IT asset management, cyber security audits, and more.

Do that and confirm it's DDR 2.

What brand, model, and power rating is your recently purchased power supply?

There is some small chance the HP case you have is non-standard in some way, but the fact that you were able to install a presumably standard ATX power supply into it is a good sign.

You might be able to look in the original documentation that came with your PC to confirm it's a standard ATX case. Or maybe from HP web site.

If the case is OK and the new power supply isn't totally bogus, you likely can get by with new motherboard, CPU, and RAM. And possibly a video card if your gaming requirements are too much for any built-in graphics found on the CPU.

You need to confirm that your hard drive and DVD drive are SATA, not IDE; I did a quick search and it appears that they are.

Give us some idea of your top dollar budget and where you might buy the parts: USA? Amazon? Newegg?

I will be able to give more specific information later. As for the power source it's an ATC-TP650-PM I think it's a 650 Watt. It fit fine to my knowledge. (put in awhile ago and don't remember off hand having problems)

Newegg is fine for me I trust them and have ordered from them before. I don't think I have IDE because whatever Cables came with the power source is what I have all threw the computer. I've also replaced the hard drive before to a 1TB. I also replaced that video card and that's why I'm not to concerned right now with replacing it I rather get the other major components first and I'll replace the video card at another time.

Do you think you can give me a round about price?

That's an Antec True Power PSU; pretty good unit; should be fine for any single graphics card you care to use.

Run that Belarc app.

Budget number needed. How much are you willing to spend for these 3 parts: motherboard, RAM, CPU?

Very roughly: motherboard 150, possibly less; 8 GB RAM 75; mid level Intel i5 CPU 200;

That's 425, but could be cut by 100 if too extravagant.