My DJ software is Traktor Pro 2 because it is the one i feel most comforable on and when i started DJing i felt it was the most user friendly one, now i have a Denon MC3000 and it workd perfectly with it. My mixes try to be as smooth as possible and with the tools Traktor provides i can achieve that goal at the best of my knowledge and technique. Also im able to map certain effects very easly and in that way create build ups whenever i want. I upgraded yesterday to Traktor Pro 2.5 and its incredible the new musical possibilities that can be achivied with the new “remix” interface.