depends on what your using and if you can or cant add to your controller...
i use a m-audio oxygen v2 24 and 64 key...
there awesome and i can stuff any plug in i can find into them..
granted im running it through reason 3 and 4...
there is a really nice m-audio midi keyboard that has pads on it..
its pretty nice but i just didnt have the money to upgrade again...
you want something you can work with in your programs of choice...
and you want something with options...
i dont like korgs these days cause they tend to break after intense or alot of heavy use...
and fuck akai..
roland..
m-audio..
only...
(cough mv8000 cough)
oh and youll hear some demzilla shit soon..
54 intro..
possible my part..
good stuff...