You are doing it wrong. You don't need that beast of computer. Cause computers tend to get old fast so the solution is upgrades.
For starters, get a 120Hz monitor. Here you can see:
3D Vision System Requirements
I recommend this one: Alienware OptX AW2310. Its manufacturer is Dell which is a good manufacturer for monitors.
GPU: You will need one GTX 670. No more no less.
CPU: Go with i5-3570K. If you are rendering a lot then go with i7-3770K.
PSU: Take the Antec HCG-620, it is a 620W PSU with a big fan(135mm) so it's quit. If you don't care about quietness go with Seasonic 620W PSU. It is still quit.
Motherboard: You will need 4 ram slot, and a good voltage stabilizer system in it for the overclock although if you are not going above 20% overclock then you can go with any Z77 chipset motherboard but you need a good manufacturer like Gigabyte, ASROCK or MSI. Asus is good too but expensive.
Cooling system: If you are not doing an overclock above 20% then you dont need a liquid cooling system. You can go with Scythe MUGEN 3 which is a good air cooling.
storage: You will need a good SSD with a capacity of 256GB at least for fast recordings with high quality and operating system to load fast at start up. I recommend Crucial Solid Series 256GB. And a hard disk with 1TB for backups and other things.
Case: Go with Fractal Design Define R3 or Antec P280 for quitness. Or if you dont care: Fractal Design ARC Mid Tower.
I think I covered pretty much everything.