ill second the dashboard confessional vote. If you looking into playing the songs though, just a tip. He only uses standard tuning on 3 of the songs (the ones from his first album). All the rest are 1. either in 1/2 step down, 2. Open D tuning, 3. Drop D flat, rest half step down.
I know almost ever single Dashboard song by memory (for the ladies of course, who fall into my lap when im playing them), so feel free to give me a PM if u want help with one.
Another good acoustic is although im not a big Dave mathews fan, i highly reccommend the acouistic live version of DMB - #41. If you can play the full song (including solo) ill be impressed as hell.