Hello, I recently purchased an ipod mini and currently have a PC. In around 3 weeks I'll be buying an imac g5 and will no longer have the PC. My question is will I be able to use the ipod on the PC and then also on the mac? Or does it set itself to the one computer the first time you use it? And if I put songs on the ipod from the PC, can I remove these songs from or add them onto the mac? I heard there was some 3rd party app that allows you to do this but i'm unsure. Another question, worth getting an Ipod mini skin? I know the normal ipods scratch quite easily but dunno bout the mini. Thanks.