P90X does work. It's very tough, but if you can say you completed it then you've accomplished something.
I did p90x for about a month, then injured myself (not doing p90x) so I had to quit for a while. I think I'll get back on it soon though.
You will definity loose weight and become more athletic on this program, though I think the nutritional guide is garbage.
oh...and OP, nice job....great results.