the i9 is nice and I love Cowons but get used to the idea of non-existent playlists if you buy one. It's an incredibly frustrating issue that all of us Cowon owners deal with because our complaints seem to have fallen on deaf ears when we complain directly to Cowon.
The one thing I do love about Cowons is that they will work with audible and they can play flac files. A lot of music players don't but since flac files are superior to mp3 files it's nice to have this option. However, if you don't know what flac files are and/or don't care then go with a small, sansa clip.