I won't say that I support gay marriage, because I don't think marriage can be separated into "gay" or "straight".  I support marriage, the right for two consenting people who love each other to make a pledge, an oath, to one another of lifelong commitment and support.  It does not matter who the people are, so long as they are consenting and of age.  It does not matter what ethnicity, religion, orientation, or any other such thing.  As long as they love each other and wish to build a life together, I support them, and I envy them.