Hey Mac hardware gurus, I have a question for ya. I purchased my iBook G4 a while back, skimping on the internal bluetooth module, not thinking I'd have a use for it. I went to CompUSA the other day though, and wanted to purchase one of Apple's wireless mice (they're so cool). Upon examining the side of the box, however, I realized that the mouse required a bluetooth-capable mac of sorts. I know that you can purchase other third-party USB bluetooth thingys, but I might as well just buy a wireless laptop mouse that comes with one. I don't want to have one of those things sticking out of the side of my iBook, however. Is there any way to purchase one of those Apple internal bluetooth modules and install it myself? Thanks!