Hubs and I are now in week 10 of P90X and it's working! I've lost 17 lbs and 3.5 inches off my hips. I wont do all of the official "after" measurements and photos for another couple of weeks, but I had to go shopping today because I only had one pair of jeans that I don't have to yank up every five seconds. I don't want to buy much because I'm hoping to get down another size yet, but I had to have something. Good thing for Old Navy sales!
The other big news is that we've decided to do another round of P90X after these 90 days are up. I honestly thought my initial 20 pound goal was ... lofty, but now that it's within spitting distance I realize that it's not enough. Another 5 pounds and I'll be in the normal weight range with a BMI of 25.9, and just 10 pounds after that I will be under 150. So, we'll do P90x again and see how far we can go. (maintaining the dietary changes, of course).
So stay tuned, in a couple of weeks I'll actually post some pictures, once I have something to show off.