Hi Ron,
Here are a few things to start with. First you will find lots of information here in the archives. For instance Eric just posted this excellent thread
https://www.stovebolt.com/ubbthreads/ubbthreads.php?ubb=showflat&Number=685600#Post685600 He also has utube videos for your viewing pleasure.
A book by Frank Sargent titled The Key to Metal Bumping is an excellent book. It is an older book first published in 1939. In it he writes about analyzing the damage carefully before beginning.
Ron Covell has some great videos.
http://www.covell.biz/ A new DVD I just bought and really enjoy is Bodywork Restoration Tutorial by David Gardiner.
http://www.metalshapingzone.com/shop/startGood luck and I hope you enjoy the work. It's a fairly slow process requiring patience and a lot of attention to detail.