I'm a smoker who has been trying to quit for more than two years. Unlike most, I've been able to cut down without drugs or patches to about a pack a week.
I'm skeptical about using one drug to wean yourself off of an other. One of the original uses of cocaine in the early 20th century was as a cure for morphine addiction.
I think the most effective way to eliminate smoking is already underway -- a public health campaign that is slowly moving tobacco to the margins of society. Ordinaces that take cigarettes out of restaurants, public spaces, and most recetly, even entry ways to private buildings, do more to discourage smoking en masse than any drugs ever will.
I read that for every new drug, pharmaceutical companies spend 40 percent of the cost not on research and development, but on marketing their drug.
So if I pay $100 for a bottle of pills, I'm paying $40 for Merck or Pfizer to sell them to me.
How about some FDA regulations that limit drug advertising? Think of all the money that patients wouldn't have to pay for drugs and all the wasted cash that could go toward researching more and better drugs.

Managing stress is my biggest problem. I've been dealing with depression since I was 13. I've been drugged and exploited by psychoanalysts.
I find the best way of dealing with depression is to find activities that force you to cocentrate on the task at hand.
Forinstance, rather than trying to get stress out on an excercise bike, try actually biking on a dirt path with difficult terrain. Then you take the physical excercise and couple it with mental focus (trying not to crash) to completely distract yourself from what was stressing you out in the first place.
When you allow whatever was stressing you back in, you'll have a new perspective on it and it won't stress you out nearly as much as it did before.