I started exercising last week (baby is 2 months old). I've found I just don't have time right now to track calories and haunt SparkPeople. Three preschool kids keep me pretty busy. My boys love to watch me exercise, though :o). I use Kinect for Xbox. I've done about 5 sessions so far, burning about 100 calories each time (according to the YourShape counter). I can tell I'm getting stronger already! Not losing weight yet, but muscle looks better than fat, and I'm hoping to notice a difference in my waistline before long.