So, I did it.

I ordered P90X.

And it's now in my possession.
I've seen the infomercial dozens of times and it looks pretty sweet. It's not cheap, but the total cost is about that of a gym's start-up fee. Plus, I don't have to schlep myself to the gym.
I even bought a pull-up bar, which is currently more of a goal item since I can't heft myself up at the moment. But I figure if nothing else, I can do abs with it :)
It is a 90 day program, which plan to start on Monday. This gives me time to do the whole program plus about 2 additional weeks that I'll use as a cushion in case I need to make up some dates before the big day November 5.
Wish me luck!