First off I have to say, Kurt, this is a great tutorial, thanks for all the effort.
Now that that's out of the way, I have a problem. All the boolean operations have worked just fine, but I'm on the leg, the first one you do on the video and when I try to to the boolean operation on it, the whole model dissapears. Both the body section and the leg. I made sure that the leg was going inside the body all the way, I even went inside and used the split polygon tool to make sure that whole faces were inside, and nothing is working. Just to make sure that the problem wasn't that not all of the let was going it I put it so just the foot was sticking out and everything still dissapeared. Can you please help?