Congratulations on growing a pair and dropping the death weed. Quitting has to be for you first and foremost. If you're quitting for family only, you'll end up blaming them for how shitty you feel and your quit will sail away on the failboat.
Like buffalo said, slide on up to the top left hand side of this page to the Salmon colored welcome center link and give it a click. There, you can read about what roll is and why we do it. If you feel like you've got the balls to make the promise, post up in the February 2013 quit group.
PM me if you've got questions.