Michael,
I read your post and good for you!!! I think that is wonderful that your are working to prevent cancer for yourself. Is the scan you are talking about called a PET scan? I agree, I would pay out of my pocket it would make any difference for me. I tell my sister, family and friends to go to the doctors office and if they would give them the tests they want, just pay for them themselves. It is definately worth it!! I know that the lousy insurance companies really should be covering everything, but until then, why compromise your health?
I have met alot of people with lung cancer on the internet and so many of them have lost family members already to lung cancer and I just dont understand why they didnt try preventing from getting it themselves like you are Michael. Anyways, since I have been diagnosed I have done a lot of research and have been encouraging my family to do exactly what you are doing. Good luck on quitting smoking, and thumbs up for taking contol of your health.
Michele