Livid Instruments have produced a good looking midi controller in collaboration with the DJ Legend Richie Hawtin!
Just looking at the layout of the controls and buttons, seems to show a well thought out, useful design. The CNTRL:R is designed with Ableton in mind, with completely customizable midi the possibilities are endless, but if you want a simple plug and play, a Traktor mapping is available and included. According to RA, Livid Instruments are geared more towards the computer hacker geek, as they include script that you can customize, but the CNTR:R does come with midi editing software, for those less inclined to write code.
Although I haven’t got my own grubby mitts on it, I have read that the build quality on this controller is top notch, which is why it is priced at around $700.
A recent review from Resident Advisor will let you in on a more in-depth set of features.