Thanks for your help, will definitely go towards the i7 processor. It is possible that I might go for SLI in the future, so I will leave the 750 power supply just to be sure.
Building a new desktop:
-Corsair Vengeance 16GB (2x8GB) DDR3 1600 MHz (PC3 12800) Desktop Memory (CML16GX3M2A1600C10)
-Corsair Hydro Series Extreme Performance Liquid CPU Cooler H80i
-Western Digital WD1002FAEX Caviar Black 1 TB SATA III 7200 RPM 64 MB Cache Internal Desktop 3.5" Hard...