Hey Guy,
I agree with those who are saying to leave it as it is...UNLESS, you are either EXTREMELY UNHAPPY by being uncut, OR if it is causing you any type of pain or health related or hygienic problems.
As some have mentioned, once done if you are unhappy with it AFTER the fact, it is very difficult & costly to have it restored.
1 last thing, IF you DO get circumcised this late in life, I mean by being an adult...following the operation, you will have a considerable amount of discomfort if not some pain. Also, you will have a change in the amount of sensitivity w/ your cock.
I offer you this info based on what some people I know have had it done, and their experiences. I myself am cut and have been from infancy.
Either way, PLEASE give it a great deal of thought, consult a Dr., and take everything you have read here, and what the Dr. tells you into consideration.
There are also websites that deal with this very subject and offer statements from guys that have already had it done...Do a search on the web to find them.
Whatever you decide, I wish you the best.