Just my opinion, but I don't see why your children can't celebrate YOUR Christmas JUST AS YOU DID as a child, and go to NYC, have a tree, etc.,. They should not have to lose out on the holiday season just because your husband is Jewish.
Are the children going to be brought up Jewish, or Christian? Either way, I still think they should see Christmas as YOU saw it as a child. It would be so difficult to explain to children why they don't get gifts when everyone else does. I can see how that would hurt a child terribly -- especially when they're young. How do you explain that to a 4 or 5 year old and make them understand? All they're thinking of is a present!
Even if your husband wants to bring them up Jewish, I still think it's only "fair" to let them see what "Mom" experienced as a child. It's only once a year.
I hope hubby will let them see a "little bit of your childhood." God bless and please take care. Big hugs, Lee