I've got an old PowerMac G3 (blue and white) and I'm running OSX 10.3. It's got only like a 6 gb HD and that's getting full really fast. Here's my questions: If I hook up an external HD through the firewire port and store all my MP3 files on the external HD, will I-tunes be able to play the music and do all the things it does currently. Having been a PC person I am excited to get a MAC because most of what I use it for is storing, organizing and playing MP3 files. However, with such a small HD, I know I'm not going to get very far. So, I'm thinking about going with the External HD option. However, if I-tunes won't be able to deal with it, there's no use.