I'm late to the party, but I would recommend a Sansa clip. I got one a couple of months ago for the commute and couldn't be happier. I'm an anything but ipod guy and just wanted something to play music. It's weightless, the clip holds it onto your clothes with ease, and the 4gb model is around 50 bucks. It also just shows up as a storage device when you connect the cable so no silly itunez or drm crappola. Just drag and drop your files as it should be.
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