My son turns 3 in February, and we'd like to build on basic computer skills that he is learning in preschool (believe me, I'm still struggling with the fact that I have to even post this!).....I wonder if the next generation will start driving at 4, or something like that..... Anyway, they use a Windows based machine at school, so I've been thinking about a Windows box for consistency sake, then getting him a Mac when he's a little older. Alternatively, maybe I should just start him on a Mac -- would be looking at an older MacBook or something like that if I went the Mac route. Any suggestions, or specific systems anyone might recommend? I'm willing to go up to $500-$750, prefer to stay lower - most bang for the buck, so to speak..... Thanks!