Hey thanks for the feedback.
I spoke with dell and we went through the whole remote controlling of my computer, we tried various things but looks like one of my sli'ed video cards is bad. They'll be sending me two more for replacement. Looking around the net I came across quite a few problems concerning the Dell xps 630i, dated a afew years back but some with the same problems I'm experiencing.
We ran a few test and everything else seems to be fine, they also updated the bios, something I had no clue I was supposed to do, so now I have a cool new dell bios graphic instead of that crappy pixelated dell logo.
I should be getting the new video cards soon, hopefully this fixes the problem, if not I gotta reinstall windows 7.
Thanks again, I'm sure Ill be back soon.