The Montignac Method is very similar to Somersizing, as Suzanne stole the idea from Michal Montignac. However, his diet is much more balanced and less gimicky. You eat your whole grains for breakfast, even 100% whole wheat bread. Potatoes are replaced with lentils, split peas and other beans. It's all about right combinations of foods and the glycemic index. I recommend his last book "How to Get Spaghetti Thin" as it has the latest information and is the easiest to understand. Honestly, once you get the hang of things, it's the easiest thing in the world. Here's what I ate yesterday:

Breakfast: fruit, then a buckwheat pancake with SF syrup, coffee
Lunch: grilled chicken salad with homemade vinaigrette dressing
Dinner: whole wheat spaghetti with marinara sauce, sauted diced tomatoes and zuccini in olive oil, and about a 1/4 of plain yogurt with SF jelly mixed in for desert.

I was down a pound this morning.