RAM: That's good RAM, I just built a system with 2 pairs of 4GB of the same RAM and they work great at 1366 MHz
PSU: Stick with Corsair or Antec, so that one's pretty good (a little expensive in my opinion).
GPU: Great vid card, brand new chipset too.
CPU: I would go with an AMD CPU at that price point.
Mobo: Pick out an AMD (AM3) compatible motherboard made by MSI instead.
Case: Mostly a personal preference here but make sure it has a bottom-mounted space for the power supply and good air flow.
HD
Best hard drive on the market for the price.
PM me any questions if you need help. :y: