i have the RIO CALI 128MB SPORT. [
http://www.goelectronic.com/Merchant...de=MP3+PLAYERS ]
ive been using it for about a year now with no issues. i only use it for cardio.
the armband is great for running. the unit itself is small and lightweight. i like the design of it so if you are holding it while you are running you can control everything as it sits in the plam of your hand with your thumb and index finger (its got like a joystick/trackball type thing)...that probably impressed me the most the frist time i picked it up.
i like the play lists so i can have a variety of music depending on the activity...and the radio is an added bonus.
one more thing...it goes on standby if your not using it for like 5 mins...nice feature so it doesnt drain your batteries.
any questions let me know.