The choice of only celibates for priesthood at the current time is recognised as belonging to Church discipline rather than the deposit of faith. There are women, as there are men, who feel called to priesthood who are married, single, celibate, divorced, gay and straight. As I see it, most of the questions about gender, sexuality and the priesthood are related to questions about gender and sexuality in Church teaching in general and a thorough-going review of all these areas is going to become necessary in the Church of the coming millennium. But that wasn't a reason to stop those who already serve in the ordained ministry. More than one young man I've spoken to who is in training for priesthood has said that he feels he can do more good in the world as a priest.
Many women feel the same.
At the end of the day the calling to priesthood is one which is given by God. Some form of discernment process is always going to be necessary for people working with the spiritual aspirations of a community. The damage which could be caused by someone unsuitable, a child abuser, for example, or someone who is delusional, is great. Those who come forward to offer themselves, men or women, need to demonstrate some aptitude for the tasks asigned to priests in their community and have some instinct for the divine aspect of their calling. I was always taught that the main quality a priest needs to have is to be a person a prayer.