I'm currently in the market to replace my aging Mac Mini with a Dual 2.3 PowerMac G5 for a great price from someone local. I'm wondering: a) How well are these machines running? b) Is spending 700-800 on a PPC machine worth it at this point? c) Would it be more advisable to bite the bullet and spend $1100 on a new macbook? Any help would be greatly appreciated, I've got a unique opportunity to get a good deal but I'm not sure how well the PPC's are going to hold up.