A good buddy of mine doesn't have Crohn's, but he does have Ulcerative Colitis. He's managed it fairly well for about a decade.
Get a good gastroenterologist and I'm sure you'll get some good advice. One of the things about crohn's vs UC is that with crohn's the inflamed section of the intestine can be surgically removed. It doesn't cure the disease and it's obviously an invasive procedure, but it might be an option to think about.
Also, I think that diseases like crohn's and UC are autoimmune related, so if I were you I'd talk to the doctor about any related issues you might needto watch out for.