I have over 60 GB of music on my Mac with about 400 CDs I would eventually like to archive to disk as well. I just bought an iPod mini for my wife tonight. 4GB will hold a quite lot of music, more than you can listen to in a day. You have to plug it in every night to recharge it so why not just rotate the music occasionaly? Also the smaller size was nice and the fact the iPod Mini uses a larger cache to prevent skipping.