I'm looking for a used Mac laptop for around $700 or less--I'm a student on an extremely limited budget, so I can't pick up a brand-new MacBook Pro or anything like that. I just bought the PC I'm typing on last month to replace my dead iBook, but I'm going to sell it, because I really don't want to deal with Windows. Do you guys think it'd be a good idea to get something like a late-model PowerBook G4 or one of the first- or second-generation MacBooks? The applications I foresee using are word-processing stuff and some of the Adobe programs.