Bookpusher, My advice to you is to NOT discuss your husband with your inlaws. Right now they may be "on your side" but eventually they will take their son's side and things can get ugly.
I know they love you but at the end of the day he will ALWAYS be their son and he will come first.
There can be no testimony without a test. I am praying to go through this test and come out the other end with a new and better marriage then before.