Reply to In search of the best, smallest, 4 channel controller(s).

So here's my situation,
I use traktor, I make mixes and mash ups and just overall play around with traktor a lot.
I have a 4trak, which is pretty full featured. However, it's big. Whenever I get an idea, I usually just get on traktor on my laptop, on my desk, and don't have the bulky 4trak in front of me because there's no space. So, I do my best to test my idea without a controller.

I'm looking for a controller, or a handful of modular controllers, that are small but still 100% full featured when it comes to using traktor. Including the ability to control all 4 decks.

The controller(s) don't reeeeeally need to be all the nice, because I already have a 4trak which is what I use for gigs and whatnot. I really like the idea of having a Native Instruments Z2, X1, and F1, but I really don't like the fact that it's only 2 channels.
I was believeing maybe two Z1s and two X1s? That should give me solid control over all of traktor, minus the remix decks (which is unfortunate, but I really don't use them anyway.) Another issue would be that I don't see a way to use headphones with this set up, not to mention that the touch strips aren't reeeeally good at finding a place in a song... I prefer jog wheels.
I'd also accept any suggestions for a small, four channel full featured controller.

So, any recommendations? I'd like to spend not more than $800.