A year ago I stumbled into a garage sale and found a small box of tapes that were recordings of sermons from some church in Atlanta, Georgia; bought them all for $2 just to see what was up. Popped one into my player and there was an English sermon that eventually became very radical (loud shouting preacher, congregation speaking in tongues, etc.). Wish I had the time to rip them and put it online.
Hoping to sample some of it for a project i'm (slowly) working on.