Having reviewed, but not participated in the P90X program, I can say that for an average guy it might be too intensive to start with if you need to lose 50lbs. But it is a solid program, while not necessarily goalie specific.
For a template to work with, here is something I posted a long time ago:
Off Season Training | GoalieCoach.Net
I have the program broken down in an Excel file if you want it. Email me @ rtroth at gmail and I will forward it to you.