My first build and I'm nervous. Q6600, xfx 680i, ZEROtherm Nirvana NV120, SeaSonic M12 700W, 2x EVGA 8800 gt superclocked, Antec p-182, Raptor 150 for Vista and a couple of games and a 1tb Seagate Barracuda for pix and stuff. Arctic Silver 5, extra case fans and my goal is a mild overclock to 3 or so. Mushkin 2GB (2 x 1GB) DDR2 800 (PC2 6400). I've always bought good OEM's before but this one's for me to learn to DIY and basics for oc on air. I'm pretty read up but green as grass. Thoughts, suggestions or where to go? I'm especially interested in blow by blow on setting up the bios. I know I'm gonna have to bump up my voltage from stock 1.8 to 2.1 to use the memory. Otherwise I'm pretty wide open to some pro help. Thanks.

Are you sure you want 680i as it won't run Yorkfields (45nm quads)? Go with 750i or better yet 780i.
 
Looks like you're shopping at tiger's. Good deal on the cpu/mobo and maybe ram combo.