A few
Woot offs ago, I got in on a bag of crap. For $8 I got a couple weeks of great waiting in great anticipation of what I would get. Finally, I got it. (18 HP over the ear headsets?!).
There were something like 12 or so various Sansa mp3 players of well known flavors. I gave most of them away or sold them for a nominal fee. But this left me with an interesting conundrum. I wanted one. . .but I only do
oggs.
So, I grabbed a 4G e260 (like $20 all over) and decided on trying
rockbox.org. Short of the fact that it doesn't natively support the USB stuff I've been enjoying it. As you might expect, it naturally supports mp3s and oggs and 13 other formats -- on ipods too! It comes with all sorts of games, including doom if you grab the wads somewhere. There's some applications, like "lamp", hard to figure that one out.
All in all, getting a cheap mp3 player on rockbox's list of supported hardware and installing it is well worth the few minutes. It'll make your couple of bucks go much farther.