What do you think about the gay marriage ruling? In your mind, what is the biblical way to interact with "sinners" who are gay?

Perhaps it's not much of a surprise to some, but I was shocked to learn that Same Sex Unions are now legal in California. This seems like a HUGE change in American culture. While homosexuality has been accepted for a long time, gay marriage is new - adding a new wrinkle to the face of American Homosexuality.

This turns up the heat on the Homosexual issue in the Church! It brings to the fore several questions:

- Would you perform a gay marriage? - What is the biblical, appropriate way to relate with gay folks? - Is banning gay marriage good? Is it better to let people do what they want?

All kinds of controversy and debate swirls around these questions. Here are a few links of people talking about this:
The Fermi Project has a new essay on the topic.
In The Agora has an interesting piece on gay marriage, with diverse opinions in the comment section.
The Christian Post has 6 articles on this. This one talks about the ramifications for California churches.

QUESTION: What do you think about the gay marriage ruling? In your mind, what is the biblical way to interact with "sinners" who are gay?