Found some cool looking early Grateful Dead, JGB, Garcia/Grisman, David Nelson Band, and The Dead download index of shows on JerryRadio.com. Hover over link and right-click "Save Link As."
This is an OK audience recording of my first JGB show at the Open-Air Amp at SDSU on May 20, 1989. (Got my degree in Music Appreciation, since going to so many shows here!)
There's a sweet soundboard from my second JGB show at the Wiltern in Los Angeles.