I've looked over many Cowon products thinking about J3 as my choice (X9 if I can't find a J3). However, I was wondering what other players are out there (older Cowon models too) that are known for good SQ, as well as having very high battery life (X9 can't be beat on that, but then again I don't know if it's too accurate). Any info or opinion on favorite player (SQ & battery life, not design, UI, etc.) would be great. Thanks.