Just saw these guys live Saturday night in a little bar outside Orlando. $20, less than 100 people in the audience, literally standing right in front of the stage 10 feet away from each of them. It was amazing. I love their albums, Guthrie's solo stuff, and the live clips I've seen on youtube, but live it a whole other level. The interaction between the players and the humor they put in is just unbelievable. All three are just amazing players and it was such a joy to see them perform live. In my top 5 shows of all time. Afterwards they all came out and took every photo, signed every CD or guitar, and mingled with the crowd for a long time. Very personable and cool.
If you're at all interested in instrumental music that's a bit "out of the box" I would say jump at any chance you get to see them. You'll be blown away. Lots of clips on youtube, and they released a live DVD not too long ago. Their new album "Culture Clash" came out last week and it's great.