The apostle Peter was married, and the Church didn't adopt a celibate priesthood for 1,000 years, sort of. I know that folks are used to priests as they currently are, but  doesn't the Bible and tradition say that celibacy for pastors is optional? Well, regardless, the following article is an interesting account of the issue;

http://www.catholic.org/news/hf/faith/story.php?id=70507