Best Buy offers the SanDisk Sansa Clip Zip 4GB 1.1" MP3 Player in Black, Red, or Blue, model no. SDMX22-004G-AB57, for $19.99 with free shipping. (
Amazon has it in Black for the same price.) That's $10 below our February mention and the lowest total price we could find, also by $10. Features include expandability via a microSDHC slot, a 1.1" screen, USB, microphone, digital FM tuner, and up to 15 hours of continuous playback.