Do you understand the importance of power supplies? It's the one computer component in which you don't always get what is advertised on the box, so I'd advise against picking up anything that's not a name brand and doesn't cost you at least $50. Thermaltake, OCZ, Tagan, PC Power & Cooling, Corsair, Antec, Enermax, Silverstone and Seasonic are just a few of the quality names in the power supply business.
Originally Posted by jamshed
You won't need a 500w power supply to run that card. A decent 430w or above power supply will do the job just fine.
Antec EarthWatts 430w would be fine. I'd even say that some of the Rosewill power supplies would do the job too. I'd never have recommended a Rosewill product a few years ago, but as hard as it is to believe they make a lot of very good stuff for the price. Even guys like Johnny Guru who tests power supplies for a living has some good things to say about some of their units, so you might consider one of them if you don't have a lot of cash to spare. I have a Rosewill 600w power supply that runs one of my computers (picked it up for almost nothing at newegg last year) and it runs everything just fine.
Abit IP35 Pro
Intel E6850 cpu @ 3.6ghz
WD Caviar Black 750 gig hdd
Seagate 250 gig hdd x 3
G.Skill DDR2 1100 x 4 gigs, 5-5-5-15
OCZ 600w gamexstream psu
SoundBlaster XI-FI XtremeMusic
Creative GigaWorks G500 speakers
Antec Sonata II case
22" Samgsung LCD
Win 7 Ultimate 64