Mixer to controll traktor, how?

[xs2man]

Ooops. There you go then. Personally, I'd just get a DB2 and be done with it, lol. But not really the cheapest way to go I guess at £900.

[manchild]

They don't sell the Audio 8 anymore, but you can find them used for like $150......

[dj gullum]

if you want something cheep and also have some midi controll over traktor I sugest you look at American Audio MXR14
It looks to fullfill all the need you descripe in first post

http://www.americandj.eu/default/mxr-14.html

It comes with Virtual DJ LE but can be mapped to traktor in no time.

[Hylfe]

The Xone K2 would give you a soundcard along with volume and eq control with kills it will just depend on the mapping that you are using to have the ability to control it. You wouldn't have a crossfader on the K2 unfortunately but the soundcard is high quality so you could use it as a single controller for traktor since it has 3 pages worth of control. You could wait for the MM-1 if you are looking for crossfader and 4 band eq though while having an extra 4 usb 2.0 inputs built into the unit. Both units are usb powered so you wouldn't have to add in a bunch of extra cables. If you are looking to prelisten to sounds though I would go with the K2.

[Jester]

you'll still need some sort of midi controller to control traktor, however the actual mixing will be done on the mixer. if you want 4 decks of control you would need an audio 8 or 10, or an audio 6 for 3 decks. the audio 2 is an option but you will find 2 decks are a restriction after a while.
my recommendation: depending on your budget, grab a 4 channel mixer in your price range, an audio 6 and an X1.