Some more or less unknown bands (at least in my area) that I like a lot:
At the Drive-In (specific album is called Relationship in Command) completely different, but awesome)
Oysterhead (Les Claypool from Primus' other band)
Unwritten Law (more well known now than a few years ago)
State Radio (not sure if you can find them yet, but check them out on www.stateradio.com to see if you like them)
Just a few of my current favorites.