I've been looking into P90X but I can be so friggin lazy at times I don't want to do anything. I do know some people who have done the program and they absolutely love it. I say go in there and go for it.
I do Zumba as my exercise and love it so much and whenever I don't feel like working out or have that "I'll work harder tomorrow" mentality I look at a picture of myself, the one that was my wake-up call as to how much weight I'd put on, that picture alone reminds me that I'm working toward the healthier, thinner, Li...it almost always works.
So let us know how your first day of P90X goes!!!!