Hi M.,
I don't know how much advice I can offer, but my heart goes out to you! My son (now 2.5 years old) could not be circumcised when he was a baby; he had a condition called chordees (sp?), where the skin around his scrotum was too tight. They had to wait until he was a year old before they could do the circumcision, and yes, he had to go under for the surgery.
I don't know why your son has to have a re-circumcision, but if he has to have one, then he has to have one. It IS heartbreaking--I won't lie. We had ours done at St. John Hospital in Detroit. They had a very nice pediatric surgery area, where the room was filled with toys and the kids could play while being prepared for surgery. I feel bad because I cannot remember exactly what they gave my son, but they gave him some sort of "happy medicine" that made him feel "buzzed" so he would not be afraid when they took him away from me and when they put the anesthetic mask over his face. That really did work. But when he came BACK to me when the surgery was done, he was freaking out and crying so hard, that I started to cry too!! But once he was back in my arms, he was just fine.
You are right--your will not remember this, and he will heal quickly both physically and emotionally. Kids are good like that! But I know how you feel about wanting to scoop him up and run for the hills--that's what being a mom is all about!! Your son will be just fine. Just make sure you spoil him like crazy when it's all done!! Do you have somebody close by (like a mom or mother-in-law or other family member) who can possibly take your youngest son for a day or two? If so, I would take advantage of that so you can really give Bradley some great, uninterrupted cuddling time!