I was having a discussion over at OC, about a 250 Watts PSU running a 9800gt , and 4670. I want to buy these 2 cards for this system very soon: BFG 9800GT / Note it does not need a power connector http://www.bfgtech.com/bfgr981024gtge.aspx The PSU requirement says 350, but i am guessing because it does not require a connector, it may only draw 40-50. And i plan to buy this: 4670 http://graphics.visiontek.com/video/4000/4670.html 400 Watt or greater power supply, but from what it says over at gpureview it says 59w. All i have in my rig is well soon a sound card for the PCI slot, and i only have on Internal HD and i have a 500GB external hook up to the back of my tower. Also keep in mind: When i was using my Pentium III, everyone said the 8400GS or 2400HD won't work because 90watts can't handle it, but both cards ran just fine in it. I also used a 8500GT in that pentium III i had and it work just fine with 90watts. The 2400HD requires 270, but only draws 25w, while the 8400gs requires 300-350 and only draws around 40. So if a 90watts PSU can handle those cards, why can't a 250 watts work with the 4670 or a 9800GT low power card?