John Butler Trio is out of California. They have a very mellow style of play. Somewhat similar to Jack Johnson or Ben Harper. The album Sunrise over Sea came out in 2005 and is well worth picking up. I highly recomend it.
You can find samples of their music and more about the band/tour dates at http://www.johnbutlertrio.com/
Thanks, hope you like them
See you in the pit.