You are making an excellent choice NewLife. My lack of involvement with my kids and wife was the final straw that got me to realize i needed to stop drinking too. It will certainly be a lot of work and a difficult transition, but it will be more than worth it. My wife drinks occasinally but was fully supportive of my quitting, so I can't say I shared the same concerns you will face with your husband. It will take time but hopefully you can convince him of the importance of you not drinking...and that's all you can hope for as he would need to deal with his on his own.
Best of luck and please stay with us here at SR. Read lots and ask lots of questions.