>>8
Not big on the Rio products though they may have gone a long way. Used to have a RIO 128 flash player. It was great until for some quacked out reason the battery stopped charging. I wanted to get maybe a 256 but found out the battery and the memory unit are the same unit. And once it got phased out... there went my 170 dollars.
Well the only other factor I'd think is that when you start to go past 200 dollars, you not only want good portability but sound fidelity. I hear the iPod has the best sound fidelity of all mp3 players.
Also, does the iRiver have an attachment where you can channel your mp3 player to a radio?