Okay, I can get a stock macbook from the refurbed store for 1000 shipped or I can get a 1.25ghz 1.25gb ram 160gb hdd 1280x800ish res 15" powerbook g4 for 900 shipped. If you were me, what would you do? 95% of the time I running adium, word, firefox, itunes, macirrsi, and textedit. The other 5% is to run mathematica or matlab. Any advice would be appreciated. I'm not interested in the mbp because I am going to buy a 23" ACD.