Which MIDI / control keyboard you're using?

thanx for replay… i already read above and i already got a midi keabord roland A-30 and is content with those keys,
but miss some knobs to tweak effects and pads hopefully modable so i can both use as drum pad or luanch pad.
also i watched a video of pad used to sequence and that also looks interesting…is there a pad i can easy set up and swith between modes like that,

or would i need seperate ones?
i m asked to join a metal band project and since i,m mostly step sequencing, i would like somtething to controll and play with in a band setting.

would akai apc40 work for me or is it stuck to ableton and i would do better of with an mpc25. i can get those for the same price and the apc look a lot cooler but i dont know thats why im asking, i would be happy for other recomendations as well… thank you.

:w00t: leapmotion, needs lesss space than a pack of cigarettes. but, no idea how precise it would be.https://www.youtube.com/watch?v=sX1VG9KNyDA&feature=youtu.be&t=45s