My iBook obviously needs more storage space. Replacing the internal hdd is really complicated, and while I'm sure I could do it I don't think I really want to. Waaaaaaay too easy to make a mistake. When I had my Acer netbook, I got this really nice 500GB external drive...question is, can I reformat that external drive to be compatible with my iBook? It would save quite a bit of money and time.