I've been involved in sports for as long as I can remember.  I competed in gymnastics when I was young which laid a great foundation for learning discipline and also ingrained in me the importance of exercising regularly.  Later in high school I played football and competed in shot put and discus.  After high school, I went on to compete in shotput and discus for Rutgers University.

After college I earned my CSCS Certification because I was tossing around the idea of getting into personal training.  Although I don't work as a personal trainer or compete anymore, I still coach from time to time at various track clinics.

Nowadays, I just train for general fitness.  I still weight train between 4 and 6 times per week followed by cardio and I also take the occassional Vinyasa Yoga class with my wife.

Here's a customizable worksheet that I use to calculate my diet:
Diet Worksheet

Here's an article I wrote a while back which summarizes weight training principles originally developed by Vladimir Zatsiorsky in the former Soviet Union:
Developing a Comprehensive Training System for the Strength Athlete