I have a MacPro from 2004, it has the dual 2 processor (non intel) I am looking at all the new software and its getting harder and harder to find programs that don't require the intel chip. My question is, if I found a used motherboard/processor on ebay or whatever, will that fit in my 2004 case? Just trying to figure out what my options are for upgrades. I bought OS 10.6.3 a few months ago (ok almost a year) to find out I can't install it. I probably should have made the time to do so sooner. lol But if anyone can answer my Motherboard question that would be great! Thanks!