Hi there wcarrick!
Well, at least if you've done this before, you know what you're doing! And this time, you have the support of 3FC and the fabulous Living Maintenance forum to carry you through the maintenance side of things.
We have forums by eating plan, age range, and amount to lose. You may want to check out the 100 lb club, for those working toward losing or who have lost 100 lbs or more. We also have a lot of miscellaneous support groups and challenges - find a spot or several, settle in, and keep posting!
Can't wait to get to know you better!