Hi and
I know a lot of people who have had success with the South Beach plan -- it's a good plan, and from what I've seen there's a very good support forum for that plan here at 3FC too.
I'm currently doing LAWL -- one of the older plans (the colored ones, not the numbered ones, from before they added more starches...adding more starches is NOT a good thing for me).
One of the things I really like about 3FC is that there is support for many different plans -- it's not a one-size-fits-all approach.
Best wishes for a successful weight loss journey!