Good luck! My daughter had surgery 2 years ago. I was very nervous but it worked out great. As for preparing your son, I think it all depends on how old he is. My daughter was 5 and they suggested that we not really talk about it with her too much in advance. A couple days before we just explained a little of what would happen and that they would give her a special mask that would make her fall asleep. I was able to go right into the OR with her and stay with her until she fell asleep, so maybe you can ask if that is an option. She healed wonderfully....kids are so resilient! The only other thing is to try to keep him healthy in the week's leading up to the surgery (if it's possible). My daughter's surgery got cancelled a few times due to colds. Good luck with everything! Can't wait to see the pictures!