If you have no experience at all I would advise against buying something really expensive. Start small, that way you won’t have invested a lot for nothing if it turns out not to be for you. And choose software first, then the hardware to match it.
What software to use really depends on your style of music. If you’re into the organized house and techno with really strict beats you’d be better of with Traktor.
For Traktor you can basically use anything you like as any midi device can be mapped to your needs. For instance, I use a Pioneer DDJ-SR, which is intended for Serato, with Traktor. It even works better in Traktor then in Serato if you’d ask me 😛
If you’re into the more loose stuff like d&b, dubstep and/or hip-hop the elastic beat grids of Serato and Cross DJ would be the better option.
If this is for you I’d advise the Reloop Beatmix 4 as it is fully featured, comes with the full version of Serato and is nicely priced. It has everything you could ever want as a beginner. You’ll have a solid piece of equipment to learn on and grow. Once you’ve outgrown it (which will take quite a while if ever at all) you’ll have a much better idea what your requirements of a controller are.
