Phenom II X4 965BE @ 3.4GHz
ATI 4890 Vapor-X or stock 2.0 from Sapphire
4GB DDDR3 1600MHz
Case CM690
OCZ Stealth X-treme 600W or 650W
Asus Crosshair III 790FX
OCZ Vendetta 2 HDT
This is what I would recommend and what I will be buying soon.
Right now I have a Q6600 @ 3.4GHz, 4GB DDR 2 800MHz, HD 4870 1GB, Cooler Master CM690, Chieftec 600W and a bit weak mobo Asus P5N-D( which I will be changing next month)













