Im not exactly lactose intolerant, but I know that dairy doesnt agree with me. So for a while I've drunk soy milk. But soy milk seems to have a bad rap, especially in this forum.
I've recently switched to rice milk enriched with chickpeas for protein. As far as I know it has no real disadvantages. It tastes good too.. The protein content may be a couple of grams fewer than soy or dairy though.
Anyway I thought Id just share that to people looking for an alternative to dairy.