I have a G4 iBook, with a 30GB hard drive. When I bought the computer I did not have an iPod, and only planned on putting some music on it. Recently I had to delete a bunch of my music due to a lack of space. I have 11GB left but need more space! I am thinking either an external hard drive such as the 160 LaCie. What I would like to do more is put a new hard drive into my computer. Am I correct in thinking that I would have to have an Apple tech put it in or the warranty would be void? Does the Apple store at CompUsa do stuff like that, if not who does? Or should I just go with the external drive which would allow me to back up my system which (stupidly) do not do?