13 months.. 120 lbs to go

I have a class reunion in a little over 13 months and I really want to lose 120 lbs by then. That less then 10 lbs a month. I need help from all of you to reach this goal.

My reunion date is July 15, 16 and 17 2011...

I up for any challenge, that will not kill me.. lol

I have a lot problems with my shoulders... so none thing that has to do with a lot of weights and etc...