For $270, you can get a Fatar 88 key controller with semi-weighted keys (they're a little easier on the hands and wrists than fully weighted) It is velocity sensitive, but no aftertouch. Or for $250 you can get a Fatar 61 key synth action with aftertouch and mod/pitch wheels.
Fatar puts out the best controller-only keyboards IMO.
-=bumpus=-