Hi, welcome to 3FC

It takes a while to find the right diet, doesn't it? They
all work, but that doesn't mean we can live with them or even stick with them long enough to reach our goals. You'll find that a lot of us around here have hopped from diet to diet until we found the one that fit our own personal lifestyles and tastes
I loved the Perfect Fit Diet book! She makes each diet easy to follow. I don't think her low carb diet is like South Beach, though. You don't count carbs on South Beach, and a lot of the foods she suggests would not be allowed on SB because they are the wrong kinds of fats and carbs. We have a low carb forum that includes carb counting without diving in as deep as Atkins, if you want to give that a shot. We also have a great South Beach forum that is loaded with great info and people
I hope you'll find what you are looking for here