Ive been thinking about having the procedure done also. There is a new way of having it done, its called "Intralase" , bladeless surgery which is suppose to eliminate the helo effect. Its all done by laser, the cornea is cut by air/water bubbles by the laser so it is more acurate for each person....check it out.
http://www.youtube.com/watch?v=3-ry8mLaY8M