In case you've never seen this, this may be the single most inspiring site I've ever seen when it comes to this. It even got me to make changes and do more.
Take a look around
http://www.twowiresthin.com/wl2003/index.html
Especially the day by day front pic views:
http://www.twowiresthin.com/wl2003/all/fro...ront/index.html
No gimmicks, no fad diets. He worked out and ate better.
Personally, that site inspired me a lot.