interesting topic and congrats to you on your boy. Circumcision was never even discussed when my son was born, but I remember distinctly feeling really awful when he returned from the procedure. It was pretty gruesome looking, and I could tell he was hurting. As a Father you would do anything to prevent your child from feeling an ounce of pain...you know? Also, I believe the medical research has dispelled any myths about concerns related to hygiene/infection.
That said, I am circumsized and my Father is circumsized. I just felt it was the right thing to do. Plus, I don't believe I've ever known anyone who was not circumsized. Also, sexual encounters can be awkward enough for a young man without having to explain the extra skin. I can see both sides of the argument. You'll make the right choice for your boy. Cheers.