Hi,
I stopped smoking with help from Champix, however, as soon as I was over the initial physical withdrawal time of 3-4 days, I stopped using them again. My philosophy here was that the sooner I exposed myself to smoking triggers as 'myself', the sooner I would learn to cope.
I am not a great fan of meds, but I had tried everything else. I used them maybe 14-20 days total and they did help in that after a couple weeks, I stopped on the date I had decided and compared to anything else I had tried, it was 'not so bad'. I stopped from 30 ish a day, so pack-n-a-half, for maybe 10-15 years.
I have had a small relapse and that was tough to get over - so I would recommend decide to never smoke again once you're off. Some people can, most people cannot, and you could find yourself instantly addicted again like I was.
I have been quit now for 8 weeks minus the hiccup.
Write down now any problems you have from smoking, honestly, note down any improvements you see during the first week or two - like more energy, better breath, less smelly clothes and all those things - you may need to remember them.
There are some resources online, like a downloadable quit counter and the whyquit webpage - both have been helpful reinforcers.
The meds - they do help. I had some minor side effects along the lines of what it said in the list - nausea, mainly, but nothing I could not cope with.
Nothing does it alone, of course, so find your best reason to quit, all the help you can find, and focus on this as the main goal for a while and then you will be fine.
-M