I love helpful suggestions, but when it comes down to it, its my money and I will do what's best for me, I'm sure Donny will do the same, as he has done before.

That being said, pairing a Ketron sd40/90 with their superior sounds together with a controller keyboard, or a standalone MOTL arranger that works well with ketron sd2/sd1000 (like korg) is a lightweight, flexible combination that doesn't require over $3k outlay. More wires and setup, maybe not for those who want it all in one box.