Reply to Midi Controller for Prodution & DJing

I find myself DJing quite often, and I usually use just my laptop. For software I use either Mixxx, or VDJ Home edition.

I just purchased Logic, and will be purchasing either VDJ or Traktor soon as well.

I would like to get a midi controller that will control logic, but at the same time I can also program to use Traktor or VDJ.

Sound card isn't important, as I am getting an Apogee soundcard that will work.

Any thoughts, advice, or opinions?