My setup is real basic, Gigabyte GA-EP45-UD3 board, E0 steppping Q9550 cooled with Megahalems and a G.Skill Trident F2-9600 2 * 2 GB kit. I do get about 1 Gflop extra thanks to my 1200 MHz memory compared to people running with 1066 MHz kits but that is only thing special about my system, I'm not even using a -UD3P or -UD3R board like most Gigabyte overclockers. FSB's like 400, 450 and 500 MHz are real sweet spots for my memory kit, like this:
These settings also push really nice Gflops and even temps stay very cool, hard to decide which one to use