Offizieller Kommentar
Currently there is nothing preconfigured for the DJM-2000 with rekordbox; you would have to configure the sample pads to your preference within the MIDI mapping.
The CDJs would still allow you quality control of the rekordbox features.
I would suggest downloading rekordbox 4.0.6 and activating the free 30-day trial to see for yourself if it would suit your needs.