John Zorn

I only have The self-titled, and Radio and they're both great. Zorn also produced and performed on the first Mr. Bungle album.
 
I really like Spillane though it's not as crazy as Naked City. The Circle Maker and Bar Kokhba are apparently among his best but I don't know them.

ou could try his band 'Naked City' too, which is like the album but more grindcore etc influenced.
 
Also he plays with Buckethead, Yamatsuka Eye, and some other cool musicians under the band name Praxis on the album Sacrifist, good stuff.