I have the same question about your moving out...why? I know it's hard to be in the house with her esp with the anger and arguing. I like whatisis's "I will not argue with you today". It's hard to walk away when you're hurt and angry too. Whatever you decide to do, protect your rights with regards to the kids. That one can bite you later and I know you would be crushed to not be able to be there for them.
If you know that she will destroy them, you have to protect them. They deserve one sane parent.