My current CPU is a core 2 quad q9300 so I would be downgrading if I went from quad to dual....... On other hand 955 > q9300 and 990 > 970. The question is, should I take the risk? I'll benefit greatly if it works out, on the other hand, I'll actually be DOWNGRADING if unsuccessful. Well, I plan on upgrading to Bulldozer in about 6 months after I make this system. So should I just go with 555?