I was raised a Unitarian Universalist and still prefer that fellowship above others, although we now belong to a liberal Presbyterian. Does your Unitarian congregation consider itself Christian? They normally fall outside that traditional definition simply because of the difference between their one-god unity (or complete focus on secular humanism) in UU tradition and the theology of the trinity in mainstream Christianity. There are people who consider themselves both, I know, but UU doctrine, if you can call it that, isn't typically Christian.