If you want your child to not go over the top angry tantrums, then as parents, you need to model that behavior. You and your husband are having "tantrums" about her tantrums. STOP - YOU are waking up the baby, not her. Stop rewarding her behavior with attention - it doesn't matter if it's not positive, it's still attention.
Sometimes kiddos need to feel safe, and that bit of time as they drift off can be just enough. One thing that helped me is telling my son I would sit in the room with him as he fell asleep, and I had my laptop with me. I did computer stuff, he fell asleep, everyone was happy. Maybe it'll work for you - I got the idea for another mom here.
Look into the parenting style called Love and Logic - there are books at the library, and you can call the website and ask about facilitators that have classes in your area. loveandlogic.com
EDIT: just last night, my 5 year old didn't want to go to bed. I gave him some choices, but he wanted to be mister kick the floor. So I told him in a very gentle tone, that when he was done stomping, to let me know and I would tuck him in, and that I had things to do downstairs. I left him safe in the room. About 3 minutes later, he calls gently "mommy, i'm done stomping" (he'd stopped after the 1st minute), and I went up and tucked him in. This "new" parenting style is HARD, but it gets your emotions out of the picture and puts it on them to make better choices. And the earlier they do that, the better off they'll be when the BIG choices come along.