For all those fans of old Atari stuff, this is pretty good. It works with the Atari 400, and although I don't have one of those I have tested in with cassette tapes, and it works perfectly. It doubles as a cassette tape player.
It is in good, like new condition although it has no box or manuals.
http://cgi.ebay.com/ws/eBayISAPI.dll...m=230001731450
Starting at just one thin dollar on eBay.
For those concerned about feedback, this is my first auction using my own eBay account. Until now, I've used my mother's, which is for all intents and purposes entirely positive feedback. Link