I thought I had posted to this thread a long while ago, but apparently never did.
We had our son circumcized in the hospital at 2 days old. I completely regret that we had it done. On paper, it seems pretty harmless - he didn't have any medical complications from it, it healed very rapidly and without event, he did not withdraw, cry unconsolably, seem dazed or otherwise out of sorts as a newborn, nursed like a champ, and he has not displayed any emotional, behavioral, or other medical complications from it since; nonetheless, I regret it with every fiber of my being, and if we would have had another son, he would have been intact. As it stands, we are done having children, and our second child is a girl.
I didn't find MDC until our son was over a year old. I wish I would have found it earlier. I wish I would have researched circumcision as much as I researched breastfeeding, then I would have known. I wish our OB would have just said the words "medically unnecessary", just once.
I regret that I carelessly and thoughtlessly removed a piece of my son - and while he may not ever have any problems as a result of it, he'll also never really be "whole". I plan when he is older to talk to him about it, apologize to him when he is really able to understand, and be sure that he and his sister both know all of the facts and will not circumcize any sons they may have.
So yes, I very much regret circumcising my son.