Someone else mentioned this site- here's the link to the forum:
http://www.southbeach-diet-plan.com/forum/index.php
It's a great source of information and support. Make sure you read the book and then look up supporting info and ask questions there. Reading the book is the first step and really helps you understand the diet.
I've had the SBD pizza- absolutely love it. It's only for major treats though- kind of expensive and it's best to prepare natural whole foods on SBD. It's kind of become a marketing thing once Kraft got in the picture. Money money money.
I really like the cereal bars when I'm in a rush or need to eat something light before going to the gym. The Kraft cereal is iffy- regular old fashioned oatmeal is better. Of course, that's once you move on to phase 2
Another great thing on that forum is the Diet Journal forum- you can read others' struggles and accomplishments, and get cool ideas for new meals or snacks because people post their menus on there.
I was on SBD for about a year, dropped 10 lbs (didn't have much to lose) and felt a lot healthier. I ended up getting obsessed with the diet and just plain unhappy/depressed so I gave up on it. However, even not being on the "diet plan" persay, I kept with me healthy snacks and an overall better understanding of what to eat and how to eat it. It's the best diet out there IMO.
Goodluck!!!