Corsair
CX, their cheap model - Not one of my recommended models.
GS Their Gamer series - OK by me
TX - Their top line, normally what I buy.
Just remember a PSU failur can wipe out MB/GPU/CPU and drives, so this is NOT a place to skimp.
For Your system anthing over a 500 WATT "GOOD" quality PSU is gravey.
My I5-2500K @4.2 w/6970 GPU, 16 Gigs of ram, 4 drives only draws 350 Watts from the wall. Factoring out PSU eff that means my system really is only drawing about 280 W