DJ, Richie Hawton, has offered up a video tutorial on his technique involving a piece of software named Traktor. He runs 4 decks simultaneously with multiple loop and sampling potential on top of that. He explains how the computer takes care of all the timing so he can experiment, and collaborate with at least 4 other DJs. It's dense layering, but I think it's interesting how technology has helped him explore his art more thoroughly. On the other hand, the tools can have the habit of playing the operator, which can kill the joy of the mistake and create the cult of same. That's just something I've noticed with design and the proliferation of Adobe CS. Same tools, similar outcomes, unless you fight with everything you have. The best DJs will avoid that bullet is my guess.
Viva Originals. Watch the video here (Vimeo is still not supported by WordPress. Tut tut.)