Re: E8400 upgrade help
750psu would be more then enough. Heck I can run dual 8800gtx's and the rest of my system on a 620hx. I'd suggest upgrading your ram to 4gb: it's very cheap these days and you'll suffer from having sli and only 2gb of ram. Also vista 64 or xp 64 would be a good idea.
Abit ip35 pro