Here is a great quote taken from a longer post that I'll link to at the end:
"Much as we want people to understand that the words gay and marriage do belong together, we don't want “gay marriage.” It's the freedom to marry that matters – for all of us."
Evan Wolfson makes a great case that suggests marriage should be for all, whether gay or straight, but that there shouldn't be "gay marriage" because it suggests it would be different than 'straight marriage.' I like it when conversations such as these take place when the issues is about equality and how to make it as seamless as possible. Wolfson's argument is for a seamless marriage for all.
Go here to a blog about Wolfson's comment (and subsequently where I read it). Go here to where his words first appeared.