I gave up my original 14in ibook, for my current 15" and can't say that i am super happy that i did. The onyl big differences I feel I got were a hot lap, and worse airport reception. Would I lose anything by going back to an ibook? I know I would drop some in speed, but I do not use apps that are super CPU intensive anyways, am I insane :-) Also, if I do decide to put it up on the bay, any thoughts on selling it with ease? Is the warranty transferrable, do I need to include the original receipt, etc? Also, is the ram the same?