I can't recommend the Allen Carr strongly enough. It simply changed my mindset on smoking and quitting in such a fundamental way that I couldn't help feeling great about stubbing out my last smoke and actively looked forward to some withdrawal pangs.
You don't use any nicotine replacement (gum, e-cigs, patches...) and it's not stressful like the willpower method (I tried a plethora of different ways to quit in the past) and the process is quite quick. I procrastinated on reading the book (looking back I was afraid) but eventually decided to bite the bullet and book myself in for a 5hour group clinic session.
The session took place in December 2008. I walked in at 9am afraid, skeptical and wondering whether I was really in the right frame of mind to quit. I extinguished my last cigarette at 2pm that day and have felt great about it since. I know I sound like an evangelist but this is one product I'll shout about. Colour me a fanboy.
Ping me if you would like more details.
It's a truly amazing book that read in a few hours and simply states very simple facts about smoking, the kind that you know but refuse to know. It force you to reconsider your smoking. That cigarette in the morning feels good? (no it doesn't) The one after lunch? (neither)... Step by step you naturally come to realize that every justification for smoking, all the fear of withdrawal, all the drama around smoking has no foundation.
You can just quit. Don't mess around with excuses, just quit. Next time you want to smoke just think "Not worth it" and forget it. But read the book.
EDIT: Allen Carr https://secure.wikimedia.org/wikipedia/en/wiki/Allen_Carr