Game build for around $1000

so i'm looking at building a new gaming computer for arond $1000-1200, it's been a couple years since I built one. I'm looking at going with an intel i7-920 processor. Not sure on the mother board yet...been reading good things on the P6T, but not sure if I wanna go with an intel board instead. as for the graphics card(s), I'm not sure if I wanna go with one good graphics card, or if I should do 2 mid-range boards with sli or crossfire? as for everything else, I'm open for suggestions. any help would be nice...thanks guys!