You made a great choice, IMHO. I'm feeling quite the success story right now. This plan is really wonderful for me, not just for weight loss but for health benefits.
I love love love nuts. Eat them everyday. You will have to see for yourself if your portions slow your weight loss. For me, if they aren't salted I can two portions a day. I add pistachios to greek yogurt - yum! Also, love walnuts in salads.
South Beach is a wonderful plan but as you go into Phase II (or 1.5 as some of us say) you will really have to pay attention to your body, your hunger signals and cravings - if any. You will find the South Beach threads quite helpful (I sure have). The book was very good but I don't know if I could have done this without the experience and advice of the other chicks here!
Also, as porthardygurl mentioned, the recipes on this board are so creative and yummy. I always like to put a good word in for
http://www.3fatchicks.com/forum/entr...alian-pie.html. It's amazing. Even my friends at work ask when I am making it again so I can share!