Wattage required for XFX GeForce 6800 GS 256 MB DDR3 8X AGP

If you're wondering what supply your PC will require, go here. If you pick a 6800GT, that should be roughly equivalent.

Depending on your other components, a decent quality 400W should be fine.

I have a PCI-e 6800GS myself, and a 430W enermax PSU.
 
Anybody got a recommendation for a PSU that'll power this card and only has a 4 inch depth. I've found I have a rather small power supply inside my Media Center computer.