i've been set on getting a 14" ibook for a while now. however i refuse to buy one now and get hardware thats almost a year old. i've starting thinking that maybe i should get a 12" powerbook instead. the main thing i'm worried about is battery life. i've heard the ibooks get significantly more life out of their batteries then powerbooks. can anyone here give me some realistic times for how much time they get from a full charge of a powerbook battery ?