Well our basic course is here:
http://www.digitaldjtips.com/how-to-digital-dj-fast-2013/
And I think to get the real basics down (how to count bars, songstructure, manual beatmatching and the first 6 most important transitions) it is hands down one of the best courses you can get. Plus it is really compact, you can learn this course a lesson a week, or take the challenge and do all of it in possibly 2 weeks with some practice and have the basics nailed on the spot.
From there you can go whatever catches your fancy. We also have a new Digital DJ Masterclass upcoming and from what I have seen it will be a winner!