I have just built a new rig:
I bought a Corsair TX650 V2 PSU and it was very noisy so I have sent it back.
Plenty of Googling has brought me here and I think I have narrowed down two PSU's that fit my budget.
Coolermaster Silent Pro M700W power supplyhttp://www.silentpcreview.com/Coolermas ... _Pro_M700W
Antec TruePower New TP-750http://www.silentpcreview.com/Antec_Tru ... New_TP-750
I see the Coolermaster has 50a on the 12v rail and is older.
The Antec has multiple 12v rails but is a new product.
Anyway which is the better PSU? I may go SLI in the future, but I think it would be unlikely. The main think is to have a very quiet PSU when idling, surfing and watching films and stuff.