Bit of a generic question this. Not even sure whether it should go in here or the MacBook forum. After a bit of advice really. Currently got a PowerBook G4 17" with 17" 1600x1050 screen. Its 1.67GHz so its the last model before Intel. Would getting a new MacBook (whenever they come out) be upgrading or downgrading? The 17" is kind of bulky to be taking to college all the time, and so was considering the 13.3" MacBook. Would anybody particularly recommend it? Or swear against it? The new MacBooks will be miles faster than my old machine, surely, but will they be as practical?