I'd currently say I'm libertarian leaning, and that's exactly my stance on marriage. It's a religious ceremony, and the government has zero business in it at all. Straight couples and gay couples may both have a civil union, which takes care of all those tax and insurance issues but we could cut that crap too. What that federal court ban (I haven't read up on it) would do is stop the judiciary from legislating from the bench, overriding the decision made by the states. This is a crucial idea, as legislating from the judiciary has led to erosion of our Bill of Rights.