The failures and sideaffects of chantix far outweigh the success stories. I'm sorry, but there is no gimmick, pill, or magic solution for good 'ol fashion willpower. Someone mentioned earlier, quitting must be a selfish act.....doing it for your spouse, kids, or your dog are not going to work, and no pills will change that. When you make up your mind to quit, simply don't buy anymore, and that's that.....when you have weak moments, that's the true test of your will power....hang in there, you can do it!!
For me, the first 2 weeks were the worst.... I quit Feb 3rd, 2011. I never had cravings, ever....but rather for me, it was breaking my 'routine'. I never smoked in the house, that's just nasty! I'd always keep my smokes (Camel Wide Lights) in the junk drawer in the kitchen right next to the back door. I'd grab one, step out, and light up. The first couple weeks, I'd walk to the kitchen, open the drawer, and realize there were no smokes in there.... That went on for about 2 weeks, and that was all.
I gained about 30lbs within the first few months....and that is not from eating in place of smoking, I didn't do that. When you quit smoking, your metabolism slows as your body detoxes the nicotine, and a little weight gain is perfectly normal. Within a year, I had it back off, I just had to put in a couple extra miles at the gym per week...

My recommendation when you quit would be to eat lighter/smarter for the 6 months following, so you dont end up with a pot belly like I got. I'm 5'10" and was 165lbs... When I stepped on the scale one day about 4~6 months after quitting and saw it at 195, I about crapped my shorts....so yea, I began a gym regimen and wisely gave up a lot of the junk food I ate, that crap can be as bad for you as the cigarettes!! It took me another 6 months, and I was back down to my normal weight....so take this lesson from me so it doesn't happen to you, prepare to change your eating habits a little when you quit.
YOU CAN DO IT, now get 'er DONE!!