Here is a website with a lot of info http://www.surgicaleyes.org . It is biased toward not getting the surgery but with all the sites out there advertising for it its good to have a devils advocate to consult.

I opted not to get the surgery right now because of the use of a Microkeratome which slices the flap in your eye. This is a mechanical device. They have now introduced a laser called IntraLase that creates the flap (supposed to be less complications but more cost for you). Until it has a couple years use I'm waiting.