I wouldn't do it, not with young kids. You run the risk of your kids being taken away. Google Kendra Holliday and see what happened to her when she came out of the closet. But then again she came out to the whole community.
We are debating coming out, our youngest is 18 and is a senior in high school. We are more out in the open now, but we don't announce it. If some asked who is G, we just say a friend. If my daughter ask where is mommy, I answer she is spending the night over a friend house.