ive just invested in the NI audio 2 soundcard that comes with traktor pro software and im ditching my previous cdj's and mixer set up for the first time on sat coming. im using masschine as a controller as i use that for production and ive managed to make a custom mapping for djing that im happy with, had a few teething problems with my windows 7 laptop and latency of the audio 2 soundcard, which seemed to be resolved by a windows update . . what would you experienced digital dj's recommend as good laptop preperation for gigs and setting up a laptop dj system..ive disabled the wireless ,which i know can be a problem with some set-ups . .