Im building this system and have basically no idea if ill have enough psu
With today's cards, the sweet spot, with some serious overclocking assumed, is 650 for one GFX card and 850 for Xfire / SLI
For comparison purposes , the list below contains performance ratings (10 scale) at jonnyguru.com / prices as per newegg on 02/26/2010 and ones w/ double asterisk (**) made it onto silentpcreview.com's Editor's Choice List:
Note: Just because you see a brand name on this list, never make the assumption that their other lines are of matching quality. Silverstone for example has other models w/ 6.0 and 7.0 ratings.