1. Amd athlon 64 fx-57 2.8ghz socket 939, 64 bit
2. intel core 2 duo E6700 2.66ghz
3. intel core 2 e 6600 2.4 ghz.
4. amd a64 x2 5200 +
Those are my choices also any one no of a good mother board to use with these systems. Thank you.I am running a 3800+ amd with a nividia 6800 gs video card and it time to get a new toy. I going to have the computer bulit in a coolmaster 830 case.