I dont use BobCad myself but the guy who owns this site:
[
http://cadcamtrainer.com/forums/index.php ]
is an instructor for BobCad/Cam and has some excellent free videos online that you can look at to get an idea of learning the program. You should register there and get the password to look at the videos. Might be of some help.
http://cadcamtrainer.com/links.html