Reply to Beginner DJ setup questions.

I am looking to buy the Traktor Kontrol S2 and the Traktor Audio 2. (First of all is this a good place to start?)

I am messing around with Mixxx (http://www.mixxx.org/) And I'm having fun
so I figured I would move on to something more professional like the setup up top^ Also I would be using Traktor pro 2.

If I want to buy the Traktor F1 later on, will I be able to hook all of this up together? Or is there not enough inputs/outputs on the Audio 2?

Looking at these setups :
http://www.native-instruments.com/en...etup-examples/
I believe that first setup is what I want.

Any thoughts/comments/ anything really will help!

http://www.native-instruments.com/en...or-kontrol-s2/

http://www.newegg.com/Product/Produc...9SIA1390U99458