Both my boys are circumcised. They had no complications and if I have another he'll be cirumcised too. We did it for religious reasons but TBH even if we had no religious reasons I would want it done.
There is a mounting body of evidence to suggest that cirumcision helps to prevent the spread of HIV but ofcourse it's nowhere near as effective as education and a condom. New Scientist had a really interesting feature about it a while back - if you're a subscriber you can read the online version.