corsair probably make some of the best PSUs around...
Kornowski runs this system with a Corsair HX520 (520W)
Intel Core 2 Quad Q6600 @ 3.4Ghz
EVGA 750i SLI FTW
4GB Crucial Ballistix @ 850MHz
2 X 8800GTS G92 in SLI @ 765/1946/1000
Corsair HX520W
Seagate Barracuda 500GB 7200.11 & WD 120GB
Tuniq Tower LED (Idle: 23c - Load: 38c)
OCZ XTC RAM Cooler
Yes, thats 2 8800GTS in SLI...
So corsairs give very good quality.
Now here is a PSU that will work, and give you a lot of headroom (you can take it to your next computer, upgrade GFX card whatever...)
Corsair TX650