A digital audio/video player made by SanDisk
, which also includes an FM radio, voice recorder, and image viewer. A Sansa is cheaper than an iPod, but is way better for the money.
By installing RockBox
on your Sansa, you can add games, applications, and more. Also, with RockBox, a Sansa can actually play videos longer than 10 minutes in length and can play MPEG files with much better compression than the default firmware's MJPEG-in-MOV files.
My $80 Sansa can do more than your $250 iPod Nano.