I found this article (in PDF) on Tom Venuto's site (courtesy of CB's blog) about a guy who lost 137 lbs and has kept it off. He goes into pretty good detail about his diet and workout routine.
http://www.burnthefat.com/howbad.pdf
I did find this quote interesting, as I am always fascinated by goal setting:
Tom, what they need to do is don’t look at it as that
big of a picture right off the bat. Break it down into the weekly
goals, the monthly goals and the lifetime goals. But just keep the
lifetime goal in the back of your mind