Take a look a HydraSynth...

Or not. I had a really icky and unpleasant experience with one of Ashun's N.Am reps, put me right off that synth. I went with a Modal Argon8 instead...rather similar, with an extra oscillator per voice, plus the company is a LOT easier to work and communicate with. And the Argon8 is cheaper. You do lose that polyaftertouch + ribbon controller...but given that I've got a CS-80, I ain't hurtin' for a workout with those.