First off, I'd negotiate with him to get a longer life added. If being a werewolf made me immune to age, or at least made me live 300 years or something then we'd have a deal.
Plus I'd get to bang chicks constantly and my healing factor would cure any STD's. That alone would be worth any of the negatives.
I'd make a deal with the US govt. Once a month (during the full moon) they get to drop me in whatever terrorist camp they want to and I'll eat everyone in sight. In exchange, they are to pay me a handsome wage and leave me alone the rest of the month.
OR
I could also just become a professional athlete and make millions of dollars. And I'd make sure my nickname is the "wild dawg" or something like that. So when people see me howling, they'll just think it's part of my awesome persona. Kinda like how Rampage howls.
And I'd use some of my millions to build a super strong fortress/bunker thing from which I cannot escape. And I'd have a time-lock put on the door so I couldn't get out until the full moon is over.
OR
I could just move to France, and once a month I eat a bunch of french people, but who cares, right?
So I guess my answer is yes. I take the deal.