I think your idea is great. Nothing to mushy and include everyone in it.
For me the big V is also my anniversary. So I really don't know what I will do. We had plans but I don't think I will even mention it. I think it will bother the kids though so I will do something with them.
Me:35, 2 kids from PR H: 37, 2 kids with me T: 15 years M: 8 years in Feb. Second walk out: 14-01-2011 H had PA: 2007