People get all wound up about the evil Microsoft monopolising the computer world but are quite happy to buy Ipod's. Apple are at least as bad if not worse with their insistence that you purchase from Itunes and their unhealthy market share. Talk about double standards . .

Anyway I like to own CD's as well so don't end up buying online mp3's (also gets you out of worrying about how many times you can copy stuff and other digital rights nonsence). I bought a 20GB (hard disc) Sony before Christmas and have been really happy with it. Uploaded about 60 albums so far and only used about 4 GB. Not much chance of running out of space.

Don't use it when running, but i've never had it skip. For exercise I'd probably go with a 2-4GB solid-state version. (I tend to cycle and prefer to hear cars coming behind me than listen to music).