Take a look at the 'working climber' series of DVD's by Gerry Beranek, available through his website or amazon. This the most comprehensive presentation of material on climbing, falling, limbing and bucking that I have ever seen. It's not cheap, couple hundred for the full set but adds up to about 20 hours of viewing and no time is wasted. You'll get more out of this than any other book or course you'll ever attend. I cant say enough good things about it. If you're tight for money then at least get the series 3 which is the falling part.
Shaun