I have a vs 20,by cakewalk,check it out its worth just looking at it.
it has 8 faders that control cakewalks faders,it also has play/stop/rew/ff/pause buttons.
this almost makes your project to show clients hands free operations.
I also use 2 foot pedals with it that have play/stop and play/rec. thus leaving me without having to do much mousing around.
bottom line, its 250/300 bucks.
but well worth it,makes life nice and easy.