Personally, if you are time constrained for exercise and the goal is to lose weight, cardio>>strength training, especially for women. P90X and all the other fad workouts aren't going to be much more effective at melting a muffin top than good 'ol cardio. Why not buy yourself a decent elliptical w/ integrated strength training and set it up near a TV and/or in an area where you can supervise the kids. If you have the dedication to do P90X at home, you shouldn't worry too much about your elliptical becoming a clothes hanger.
Edit: Sorry, just noticed in a previous post that you were looking to get toned/healthier, not lose weight. When you mentioned "flub" I assumed weight loss was your goal. Still, for a woman, the resistance settings on a good elliptical provide good muscle toning.