I building a gaming pc, but I'm stuck between choosing processors. I want the AMD Phenom II 955 X4 because of it's decent pricing $216, but i feel that the Core 2 Quad Q9550 $220, Core 2 Quad 9400 $190 , Core 2 Duo E8400 $168, or Core 2 Duo 8500 $190 may out perform it. Which should i choose? Please give me links to benchmarks or a personal answer, no biased replies.