Roland MC-202 (pretty basic monosynth ala SH-101, but the digital sequencer in it is a secret destroyer..just take the time to learn it..64th notes blasting into triplets into silent pauses while the envelopes stays open and howls..no problem. If only it could hold more than 2 tracks of data.

Flower Electronics - Little Boy Blue Double. Only a couple were made. No chips..all transistors and banana jacks..madness. The audio output is equal to a serge or buchla.

Nord Lead 2 rack. So simple and straight forward which is why it works so well in the studio and out live. Sends and receives program changes on 16th notes without even hiccupping the audio output which very few modern synths can do. Stacking sounds on the four outs is a breeze and the custom synth drum kits you can make if you have a Ram card are fantastic when mapped on an MPC for triggering.

Waldorf Pulse....powerhouse that is a great bargain. You need the "pluse" version with the filter input and CV/Gate for the creative and fun tricks that make it freak.

The Squarewave Parade - Downgrade Version 2. Ok..it's a analog sample rate reduction pedal, but has a flipswitch to force self oscillation and then the CV input takes it into squelch and belch and audio armageddon land. So great.