So.... I need a laptop. I like Mac's, but they're so expensive... I know they're better, but I can't afford one. So I was thinking about a Powerbook G4. 1.67 GHz, 1.25 GB of RAM, 80 GB HDD, Leopard. $650. Will this perform better, than, say, a 1.6 GHz Atom? I would just sync my iPod, browse the web, et cetera.