Reply to Ideal mixer with built-in soundcard?

Hey everyone,

I am a musician new to the world of DJing (about a month) and I have been practicing mixing and creating sets with Traktor Pro 1.2.6, using only my Macbook Pro and awful headphones since I have just started out...

I am about to invest in studio monitors, good headphones and of course: I need a mixer to control Traktor Pro! I would like some advice as to what mixer would be ideal for a beginner BUT not cheap, as this will be a relatively long-term investment (2-3 years). I want it to be sturdy (heard the bcd3000 was shit)

I am at a complete loss because I don't know what sound card to buy, whether I should buy a mixer with a soundcard already built-in, or what controller+soundcard combo is the best deal. Any advice would be extremely helpful.

Also, what exactly is the difference b/w scratch pro and pro? I am not going to be using cds/vinyls at the moment if that's what its about.