It would be easier and cheaper to go with agp. The 6600gt is only $119 after rebate at newegg. Or, you can go with athlon 64 refurbs from newegg. The 3000 socket 939 can be overclocked. With chaintech refurb board, both are less than $170. Heck, Fry's had the 3200 retail boxed with ecs sli board for $159 2 days ago. Not a great board, but that's a bargain for sli.