Both Denise and I have been asked many times how we would raise our children: Vegan or not. The answer is simple: We don't know. We do not have any children and Denise does not desire any. I personally like the idea of having a child, but I have enough trouble supporting myself much less a little person that is totally dependent on you. The upshot of all this is we do not plan on having children so we do not have to face the decision on how to raise them.
As for me I think that the decision is something that both the vegan and meat eater have to seriously discuss before even deciding that they want children. I think that a child can be successfully raised in such a mixed household. As long as both parents respect the other's decision then the child will gorw up respecting both parents. If the vegan is always putting down the meat eater's eating habits and the meat eater is always turning their nose up at the vegan then the both parents are going to be very unhappy and the kid will be truly screwed up.
As elsewhere in life, there are no easy answers. If anyone out there is raising a child in a mixed household, please let us know how you you are dealing with it and what problems/successes you are having. I will post them here so they can be helpful to others.