I'm looking for the notebook, either Windows or Mac, that has the absolute longest battery life. I don't care about performance (I use a G4), but I just really need something that will run a long time away from an outlet. My school library (UConn) for some reason has a VERY limited number of power outlets... someone really dropped the ball when designing that part. Anyways. The problem is that I love Macs, but the reports of MacBook battery life I've heard are always really variable, anywhere from 3-6 hours. I rarely use WiFi in the library since I'm usually just typing a paper. With low processor usage, wireless off, what kind of battery life do you guys get? Right now, my choice is between a MacBook and a Sony G2, but battery life reports from the Sony are even MORE confusing. Some say 5 hours, some say 10, and no one ever states what battery they're using!