I'll be using photoshop and other multimedia stuff on it, but I'd probably plug it in when I'm going to do that. Typing notes in class will be using battery, but I'm sure that can manage me through a few classes a day. I'd probably upgrade to the 5400rpm from the Apple website, though it's 114 dollar upgrade I think. So I'll probably wait until MacWorld to get one, thinking maybe updates or price drop a tad. I'm thinking about just holding on until I can get the PowerBook.