New Fitness Program

I have been lucky enough to get my hands on a copy of P90X and can't wait until I begin it. I will actually begin on Friday night/Saturday night. I'm hoping that since I have hit a plateau and can't seem to get past this weight and also past this size. I really want to be in a couple sizes smaller by Christmas. So I'm going to do the Lean program which is mainly cardio and that will be a new thing for me. I can't wait!