OT - ipods

I've just decided I "need" one of these little gadgets. I've always like to walk with music - the rhythm drives me forward a lot faster and makes time pass more quickly. I've downloaded a few songs off iTunes through AOL and it's great. You can build a library of your old favorites w/o buying an album.

Any input on brands, etc? what features? I see one that goes for aroun 100 bucks, only holds 120 songs. Some I see can hold 1000 or more. I can't think I need that much - can always swap out music.
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