as was mentioned above, "easy way" by Allan Carr is a fantastic book. I stopped about eight months ago in preparation for my initial class 1.
I've never looked back, it really was so easy, I felt stupid for not having done it sooner.
Once you realise that it is only the fear of your life never being the same again without cigs that is stopping you, the rest becomes easy.
Withdrawal pangs are nothing, they are just exacerbated by angst, it's only the psychological part you need to get sorted. read the book before considering any medication (and I include patches and nicotine gum in this)
good luck
D-G