I've done the marathon. I've done the body building. Now, I'm going to try and put the fitness and toughness together in the ultimate challenge - White Collar Boxing.
That's right, for six weeks I'll be putting myself through a gruelling training program to prove I can both float like a butterfly and sting like a bee.
It will then end in the ultimate demonstration of skill and toughness in a Las Vegas style fight night where I'll take on other poor souls in a battle for ultimate champion.