Windows 7: Gaming computer advice

This is my components list for the gaming computer that I'm planning to build. Any feedback or advice would be most helpful as this is my first build and I'm a total noob

OS: Microsoft Windows 7 Home Premium SP1

Mobo: ASUS SABERTOOTH Z77 LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX
Intel Motherboard

CPU: Intel Core i5-3570K Ivy Bridge 3.4GHz (3.8GHz Turbo) LGA 1155 77W Quad-Core

GPU: Galaxy GeForce GTX 670 GC 4GB 256-bit GDDR5 PCI Express 3.0 x16 HDCP Ready SLI Support Video Card

Sound Card: ASUS Xonar DSX 7.1 Channels 24-bit 192KHz PCI Express x1 Interface Audio Card

RAM: G.SKILL Sniper Series 8GB (2 x 4GB)

PSU: Antec High Current Gamer Series HCG-900 900W ATX12V v2.3 / EPS12V v2.91 SLI Certified CrossFire Certified 80 PLUS BRONZE Certified Active PFC Power Supply

Optical: LG DVD Burner Black SATA Model GH24NS90 - OEM

Hard Drives:
SAMSUNG 830 Series 2.5" 128GB SATA III MLC Internal (SSD)
&
Seagate Barracuda ST2000DM001 2TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5"

Cooling: Thermaltake WATER2.0 Pro Closed-Loop All In One Liquid CPU Cooler

Case: Antec Twelve Hundred V3

Monitor: ASUS VS248H-P Black 24" 2ms HDMI LED

Keyboard: Tt eSPORTS CHALLENGER ULTIMATE

Everything you planned to build looks great to me.. But with this kind of Gaming Rig! you're missing a very important thing that is SSD (Solid State Drive) and yeah if you can get Western Digital HDD instead of Seagate Barracuda it'll be better..

The Smasung 830 series is a SSD Why is the Western Digital better?

What's wrong with this thread?

Building a gaming computer.....need input

I thought that I might have put it in the wrong forum & I couldn't find a way to delete it.

oops sorry my eye skipped straight to Seagate

I always had better experience on WD than Seagate.. I think that in terms of performance, price and quality of the product as well warranty WD's are better.. but this is in my experience some people say Seagate some say WD so im one of them who say WD is better

I found this one for like $70 more, which is in my $2500 budget
Western Digital Caviar Black WD2002FAEX 2TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive

This might be useful regarding hard drives. It's a study of the return rates for various hard drives sold by a large retailer.

Components returns rates (6) (page 6: Hard drives) - BeHardware

All hard drives are subject to early failure or even DOA. It's cheaper for them to replace the failures than make them more reliable.

A few hard drive models actually have bad designs. I think the Seagate 7200.11 was one instance. Newer Seagates seem to be better.

No one is going to recommend a brand to you if they have personally had a bad experience with that brand. It happens.

I've never had a drive fail and have owned all the major brands. I currently have Western Digital and Samsung HDDs. The last I checked, they were both among the fastest. The Samsung might be a bit quieter.

Take your pick and hope for the best. I'd pay attention to price, return privileges, support, and warranty. If it does not fail, you may not notice any difference between the brands in performance.