So my Mac Pro FINALLY arrived today after almost 2 weeks. First thing I did of course, was yank out the CPU and replace it with my i7 975. Really easy, although I would like to note that you can't "over tighten" the heatsink on the Quad as they have IHS and there are bolt gaps on the bottom that prevent the heatsink from being over tightened on top of that. Also, the heatsink is bolted all the way down from the factory anyway. I was worried about that at the beginning before I realized and so didn't tighten it all the way (wanted to see what the temps were before over tightening). Low and behold I get a shutdown halfway through startup. So I yank out the board again, look at the side and realize that SOMEONE *cough cough* forgot to catch that in their CPU replacement guide. ;-) Then I realized "wait a second....they were screwed all the way down when I removed the damn thing" so I tightened them all the way and VOILA. 3.33Ghz Nehalem Mac Pro. Downloaded SMC Fan Control for a quick glance at temps and idle is around 37C which is fantastic considering my ambient with no A/C By the way, don't have a heart attack over temp shutdown. Temp sensors on all boards built in the last few years (that aren't bargain crap) have auto shutdown when CPU temp exceeds spec (usually 100C). Doesn't do any permanent damage. Currently installing all updates, of which there are a crap ton, before opening it up again to install the GTX 285. Have to install the latest OSX update and the NVidia drivers first, so might be a bit. I'll keep you guys posted and toss up some pics of the naked board later.