This classy site - The Potential Wedding Album - supports same-sex marriage as a legal option here in Australia. You might want to have a look and give it your support and/or pass on the link. Successive federal governments in Australia have not only failed to provide for same-sex marriage; they have gone out of their way to discourage "too-marriage-like" legal statuses even in state and territory jurisdictions. All this is simply pandering to social conservatism, in my view. As long as we are going to have such a legal status as "marriage" in our society - maybe we shouldn't, but that change won't happen any time soon - I see no rational basis for restricting it to straight couples. The restriction is socially unnecessary, and it's gratuitously insulting to gay men, lesbians, and bisexuals. It casts them as second-class citizens with second-class relationships.
It's time to move on and get rid of this offensive restriction.