Quote: Originally Posted by tinguen
(here's the plan for my system, if you're curious)
Gigabyte GA-P55A-UD4P Motherboard
Antec EA-380D Green EarthWatts ATX Power Supply
Corsair 4GB, 1600MHz DDR3
Western Digital 500GB Caviar Black SATA (32MB)
As to that card, it's really up to the drivers and since Nvidia supports all OS's, as been already stated, yes you can use it under Windows 7.
A bit off topic, but If I may make a small suggestion? With that system you're putting together I'd at least look at a 500/550 watt PS. It's not going to cost you much more, and you can stick with the same company. In the end your system will thank you. My opinion. Antec EarthWatts EA 500 Power supply - 500 Watt