Sorry to be a pest, but the more I read about Greg Nelson the more I think you should go there if you really want to know how to fight.
He's competed in Muay Thai (real kickboxing, which is effective, especially in comparison to TKD) and is one of the FEW BJJ black belts in the US.
http://www.mmaacombatzone.com/
Really, you need to go there. Really.
Thanks for the links! I might head over to the dojo on Friday after school.
Much, much later, I learned about the real medical complications that Muay Thai fighters are susceptable to in old age, and I really felt sorry for him.