Well, I would suggest picking up some live Bela Fleck. I have Live Art which is pretty good, though I miss the conitnuity of a complete live performance (for example, some songs have sax and the overall band lineup changes in general throughout the different songs). Though I haven't heard it, others have recommended the latest Live at the Quick to me, so that should be worth checking out.
BTW, another really good jazz band in the jamband scene is Galactic. They are probably the best show I've ever scene.