I'm looking for a small portable mp3 player that I can use to listen to music while I run. I want it to be light so that rules out the ones that play mp3 cds. I'd like to get something that resembles those old Diamond Rio ones. However, a lot of different ones have came out and I don't know which ones are good. Does anyone have any suggestions. I don't want to spend a lot of money on one of these since it will see limited use, but I don't want a piece of junk either.