DealFisher via eBay offers the refurbished SanDisk Sansa Clip+ 4GB MP3 Player
in Black, model no. SDMX18R-004GB-A57, for $19.99
with free shipping
. That's $4 under our August mention of a new unit and the the best price we've seen for a refurb, although we saw it used for $5 less two days ago. (It's a current low for a refurb by $5.) The 2" x 1" x 1" Sansa Clip+ features expandability via a microSDHC slot. It also includes a 1" OLED screen, microphone, digital FM tuner with 40 preset channels, up to 15 hours of continuous playback, and compatibility with Windows 7.
Of note, no warranty information is provided.