Many are very impressed with the Sandisk Clip+ and Clip Zip when running Rockbox. Rockbox is not available for the Clip Sport. The Clip Sport keeps card memory contents in a separate database from internal memory. Each dabase is limited to 2,000 songs.
Low price; FM radio; built in clip; 24 hour battery life; card slot; decent sized display
Much less capable than the Clip+ or Clip Zip; card memory in separate database from internal memory