Reply to Using cdjs with traktor s4 as mixer

I am in the process of buying a pair of cdjs, i know that the s4 has its soundcard and i was wondering how i would go about running a pair of cdjs through it using it as a mixer. Any specific model i should be shooting for? I was looking at the 800s and i was wondering if that was ok. Also would i be able to use it as a standalone mixer or would i have to be using traktor pro scratch along with my laptop. Any information is much needed and appreciated since i am about a click away from buying them. Thanks djtt =D