At least, I think this should appeal to prog rock fans.
I'm currently listening to Rovo'sTonic, a Japanese act consisting of members from the Boredoms, Bazooka Joe, and others. I know absolutely nothing about prog rock, but I think this would hit the spot. Recorded live (2 CDs), long psychedelic spacy violin/electronics/guitar jams. Really amazing stuff, and has 2 remixes by Bill Laswell tacked onto the end.