Is your wife committed to breastfeeding? I can post NOCIRC's position statement on how the pain, shock, and trauma of circumcision interferes with the likelihood of establishing a successful breastfeeding relationship. In addition to the risks of complications and death posed by circumcision, formula feeding increases a baby's risk of dying in its first year by 25% (and this is in the US - according to a study published in the Journal of Pediatrics). Then there's the lifelong increased risks of cancer, obesity, diabetes, and heart disease, not to mention ear infections, asthma, and diarrhea. As well as your wife's increased risks of breast cancer, ovarian cancer, and rheumatoid arthritis if she doesn't breastfeed.
The stakes are really high here. There is nothing more important for your baby's health and normal development than establishing and maintaining breastfeeding. There is no vaccine that can give your baby as much protection from as many diseases for his entire lifetime as breastfeeding.
(Even if a baby is anesthetized for the circ, there is still going to be plenty of post-op pain as the baby pees and poops on an open wound in diapers. I have personally known people who decided to circ and had baby refuse to latch or nurse effectively afterwards. One gave up bf totally. The other succeeded but had to work like hell to get baby back to the breast.)http://www.nocirc.org/statements/breastfeeding.php