I did not circumcise my boys. See:
peaceful parenting: Intact or Circumcised: A Significant Difference in the Adult Penis (contains pic of penis)
It is not cleaner really. It is no dirtier than the vagina. Men who are not circumcised rarely get infections and if they do it is usually only once. It is easily cleared up in a few days on its own or with some antibiotics never to be infected again.
The foreskin contains nerves and the gliding action helps with masturbation.
I would not deprive my boy of a functioning part of his body. It is his body not ours.