Muay Thai Authority did an article on Simon Marcus, which details his entrance into Muay Thai and his ambitions in the sport. It's a pretty good read, and also a true story about how passion and drive can be used to change you for the better.
This is an example of someone who found purpose in a self directed dream. Chok Dee Bad bwoy
Also notable is Muay Thai Authority's report on Simon potentially fighting Kaoklai on Muay Thai day: http://www.muaythaiauthority.com/2012/02/kevin-ross-vs-coke-eminent-air-and.html
This will no doubt be a great fight, which will pit Simon against one of the older but most accomplished fighters at his weight.