Well my uncle has a mac mini with a pmu problem, everytime you want to turn it on th pmu has to be reset, i was thinking since it works itd be perfect for a media center since itd always be on anyway. I dont have a desktop, just my macbook which is why i was thinking of upgrading the processor and ram while im at it. I doubt i can go quad core but i have read reports of dual core upgrades. I want to stick in a 2.2 like the macbook and i was wondering how i could go about that and also what kind of ram it took, i have gig stick i took out of my macbook that i wanted to use for that. Also i cant find any info on changing or buying a pmu.