Be careful about doing the iron training by yourself. I would suggest that you find someone who knows their stuff to teach you. If your dead set on doing it yourself then I suggest some good material. I've never done any iron training, and don't plan to, but I've done some work with Shou Yu Liang in the past and he has a book out that covers that stuff. Check it out here:
http://www.amazon.com/gp/product/188...Fencoding=UTF8
He definetly knows his stuff.