Need some help with a PSU

[Caveman]

Can anyone comment on how this would do in a rig with:

1) 6800ULtra
2) 7800GT or 7800GTX
3) 7800GT(X) in SLI

Yay or nay???

 

[Buck Naked]

This is a handy little site for rough ideas
http://www.extreme.outervision.com/index.jsp

Going off the top of my head, I think option 3 called for over 500