I lost my beautiful 38 yr old mother to lung cancer and am watching my 48 yr old father have very serious problems breathing every day so pardon me if i'm a bit biased to this subject.
I'm not one to go up to someone and say "man your killing yourself" so i can get the typical, "its my body i'll do what i want with it" dumb ass response. I understand this, throw yourself in front of on coming traffic if it makes you happy, you are a free person. One thing you people should consider is not how it affects you but how it will affect your children and family when it finally catches up with you. Thats all i have to say on this, think about those that love you. You can't understand, unless of course you've been through it , what its like to watch someone like your mother die from something like cancer. For me it was pretty real when I thought about it and watched her struggle to breathe w/o an ass ton of pure oxygen.
Medications like Zyban and Wellbutrin are commonly prescribed to curb the cravings. A lot of it is psychological too. If you try to quit keep a cigarette close and when you get the urge put it in your mouth and inhale deeply, as if it were lit and you were taking a drag. If you do that along with taking medication or even chewing gum it will really help. Most insurance companies are now covering, very limited coverage though, medications to stop smoking. Most cover X day supply in a year, or even the life of the policy. That should at least get you started. If you prescription benefits are handled by Medco pm me with your info and I can check to see if you have any coverage.