DJM-2000 + 2x Native Instrument X1

Hi I have 2 Native Instrument X1's and a DJM2000 and a MacOSX running Traktor. I would like to understand how I should set it up so that my X1's are fully integrated with the mixer. Also I would like for the Midi clock to sync all 4 decks on the 2 X1's.

How do I connect it so that it works? Can the soundcard on the DJM2000 manage both controllers and sync them? I would like also to map each channel on the X1's to a channel on the mixer.

I would really appreciate some tutorials, links, ressources, advice...anything! :) Help!!

Thanks,

O.