i have 2 spec that are very close to what you are looking for. but a few thig must be said
8800 ultra = slightly over clocked gtx
nforce 680 = buggy and picky about ram
killer nic = waste of money.
a winning combo is :
- core duo or quad. they all over clock very well.
- intel p35 based board
- 8800 gts or gtx
i'll upload the specs tomorrow as flikr seams to be on the blink
EDIT: beaten to it by drat