The Finnish Acid Symphony Orchestra. Great from 3 mins in, 25 mins total of live acidy goodness at Springnine Festival , Graz 2009.
Although having used a TR707 I have to say a 808 or 909 is probably far better…nice kick but loads of annoying latin percussion!
And the guy with the beard is quite cute too…AND into acid house/303s? Definite marriage material 😉