Akai makes an LPD8, looks really simple for 70 bucks. 8 pads and 8 knobs. That should have me covered, yes?Show More...
That looks like a good option. I've been using a Korg nanoKONTROL2. 8 knobs, 8 faders, and plenty of buttons.
Those S, M, R buttons can be assigned as well?
Yup! Definitely a good choice with lots of mapping options.