Gay Marriage in Pennsylvania

Where can a gay or lesbian couple get married and have it recognized in Pennsylvania? Here is a letter I received:

Dear Kathy:
I've been reading a lot about getting married at city hall in San Francisco, CA. I know that for about a month gays were able to legally get married there. Then around March 2004 it was taken to court. Do you know what is going on with that? I haven't read anything recently. My girlfriend and I would like to get married in another state, and come back to Pennsylvania and still be married.
Where can this lesbian couple get married and have it recognized in Pennsylvania? Read more...