i think the best way to make what you have better/faster is to first increase your budget, and then buy respectable hardware 
My Computer
At a glance
Windows 7 x64, ultimate/pro/home, SLES x86 & ...intel & amdyesgtx970
- Computer type
- PC/Desktop
- Computer Manufacturer/Model Number
- homebuilt & dell & sgi
- OS
- Windows 7 x64, ultimate/pro/home, SLES x86 & ia64
- CPU
- intel & amd
- Motherboard
- yes
- Memory
- yes
- Graphics Card(s)
- gtx970
- Sound Card
- same as memory
- Monitor(s) Displays
- benq 27"
- Screen Resolution
- 2560*1440
- Hard Drives
- many