Reply to Ditching my V7's, getting Numark 4trak

I believe I'm going to jump on the $799 price point on the numark 4trak. It's what I wanted the V7s to be. I can't buy the s4 because it doesn't have balanced outputs or replaceable crossfader. Not sure I want the vestax machine, I still like the look and feel of the numark machines. Will I be able to use a midi fighter pro with the numark? How much is it to upgrade to a full version of Traktor to get all of the effects? If I was gonna get a midi fighter pro which layout is gonna be best if I'm learning everything from scratch and want to become a great club DJ?

Thanks for your help guys.