I called Compusa and they want $179 for a new drive, and $140 to install it. He told me the biggest drive you can put in an iBook G4 is 80 gig. Is that true? Does anyone know who can replace the drive for cheaper, or is it really that hard to do yourself? What is the proper hard drive to buy. Newegg has many notebook drives but I'm not sure what specifications I'm looking for. Thanks for you help.