The GeForce 8800GTS has only one 6-pin PCIe connector. You don't need a large power supply. TR's test system with the GeForce 8800GTS 640MB pulled 254 watts from the wall. Figuring in the 82% efficiency of the power supply that they used, that's only an average continuous consumption of 208 watts inside the case. Add 40% to that to handle peaks and to provide a safety margin, and you'd still be able to get away with a good quality power supply that could provide 25 amperes (300 watts) on the +12 volt rail.$50 -7½ code "EMCXNWL3" -20MIR
Corsair CX430M (Modular, Bronze, 32A @12V)$45
Antec EA-380D (Bronze, 28A @12V)$46 -20MIR
Corsair CX430 (Bronze, 32A @12V)$64
SeaSonic SSR-360GP (Gold, 30A @12V)$100 -19½ code "SPIJULY31"
Sparkle R-FSP500-70ETN (Platinum, 38A @12V)$81
SeaSonic SSR-450RM (Modular, Gold, 37A @12V)