I have an Iriver IFP-795, similiar to this one but 512MB capacity (it's not listed anymore).

http://www.newegg.com/Product/Produc...82E16855150027

I'm very happy with it. I wish it had a little more capacity (1gig would probably be best) as I used to sometimes run out of new music towards the end of an 8 hour work day (depending on the quality/bitrate of the music). Has an FM tuner (which you can record to .mp3 files), mic recording and runs a AA battery. I bought a $20 set of 4 rechargeable Energizers and a charger and if I ever run out, it's very easy to find another AA so I'm never stuck with a dead battery.