Need help deciding on a setup.

[djoh]

S2 sounds better, you will learn alot with it. and then move on to cdj later

[johney]

why not get the cdjs straight away then?

[johndavid]

Keep in mind that you'll also need to buy a soundcard to the list of items you put in your first post.

Both of these are simply controllers.
The M-Audio controller is kinda cool but it's essentially a toy(not to say it can't be very good either!) yet don't discredit the joys of starting with cheap fun gear and building up to bigger and better things if you get serious about djing.