I am considering selling my Mac Mini G4 1.5GHz, 1GB RAM, 80GB, BT/Airport, 10.4.11 and iLife '08 for around 400.00. And then, sell my PC laptop 2005 model for 150.00. This would almost give me enough for an entry level Mac Mini C2D with an education discount. Mini Mac C2D owners what do you think of your machines? Would I see that much of a performance difference with 10.5 and C2D? Opinions please. Thank you.