I'm doing Atkins. I don't have his books but I use his website
www.atkinscenter.com. It has a lot of good information. All of us on Atkins also post to the Atkins thread below low carbs. I think some folks on here do South Beach also. They have a website too. I think I've read a comparison of these two somewhere on this site. If I find it again, I'll tell you where it is.
I've lost 27 pounds since 24 June 03. It's not my favorite diet but it's working. I have a slow metabolism. I picked this one to lower my cholesterol. Hopefully the proof will be in the pudding when I get it checked next month.
Good luck!