I do P90X now, and am in my 7th week of it. I LOVE it. I substitute running and elliptical instead of their cardio dvds (didn't feel like I was getting enough of a cardio workout), and then use the strength training dvds. I haven't measured myself, but my muffin top is definitely disappearing and I have some real muscle definition.
I started the program when I was 216 pounds. It's very hard, but you can modify - and I do. I still can't do a "real" pushup - I'm all about the girly pushups!!!
