I wonder how much the Mac performance is degraded by OSX. I've yet to find a way to turn off a lot of the flashy GUI features in OSX which I imagine use up some unnecesary CPU time. However, I haven't looked that hard. Shame though. Considering it's based on FreeBSD, processor usage should be tight as hell. Perhaps that's just a prob unique to Abelton? Was Ablton originally coded for PC or Mac?