I've done both at once pretty much - am 60 days into sobriety and 25 days not smoking. It wasn't really 'planned' but I knew I had to do them both so thought I would give it a go! What I have done though, is, although I'm not using AA or any group for my drinking, i am using my doctor's surgey for help with the cigarettes. It's a NHS thing over here, you go once a fortnight to chat about how it's going and get nictine replacement. So far I have been decreasing my patches and lesseining my use of the inhalator. This works well for me, but I can't speak for anyone else of course!!
I also have to say that I am finding quitting smoking twenty times more difficult!
Good luck. :ghug3
cm xx