Hi, awaldron...ran across your post today and though I'd chime in.
I also considered the P90X plan recently and went to a friend who had purchased the product to see what results they had seen, how they liked it, etc. I did NOT purchase it after reading through all of the material that came with it and trying a few workouts with them. It just wasn't what I was looking for. They, on the other hand, seemed to be very into it. It is quite diverse, has several different exercises/routines, lots of repetition and my friends who were doing it did see some results. Their main complaints were that it did take A LOT of time each day to fulfill your daily exercise commitment, you have to follow a very detailed plan (and that wasn't their style), you have to have somewhere to actually (temporarily) install a chin-up bar and that there isn't really much cardio impact...LOTS of strength and endurance training, but nothing that kept the heart rate up. Also, if you follow the actual P90X Plan, there is a menu planner, protein drink mix and bars that are to be eaten after workouts, supplements to take and some stipulations about the times of day that you exercise/eat. I don't know anything about the carb count in the shakes/bars, only that my friends didn't care for the taste.
And to make an already too long story a bit shorter, they bought it (and it wasn't cheap), tried it, got tired of it and are now using the chin-up bar as a clothes rack!
Truly, it was very hardcore and if that's what you're looking for and you have plenty of time to devote to it, you may have found a winner. While they were faithful to it, they did see some results...inches, not pounds. Hope that my secondhand report doesn't muddle your decision even more! Much luck to you!