I'm definitely curious to see what pops up in this thread. I'll get the ball rolling with some stuff off the top of my head: I saw an unplugged SRV show that might be up your alley. The only thing I remember was his unplugged Pride & Joy (it was pretty sick). You could try Hendrix's unplugged Hear my Train a Comin'. On a side note, you might like old Chicago blues as opposed to Delta: Little Walter (gotta love My Babe), Elmore James, Sonny Boy Williamson etc... ...and the champion of the world: http://www.youtube.com/watch?v=sBxKZVGmHSA lol