I think unless you've got one of Cowon's mp3 players, you're probably fine just sticking with VLC. Not to mention I think the program he mentioned isn't free.

That being said, I could easily go for an iAudio X5 when I'm ready to move on from my Rio Karma. Supports FLAC, and they have support for Linux via USB (the Karma has to connect via ethernet if you're not a Windows user).