Baby zebra finches on the way. Any advice?

I have two female zebra finches. One was just unknowingly pregnant when I bought her. And yes I'm sure the other one is female. She layed 8 eggs so far, and is sitting on them. Sometimes they will take turns sitting on them. I want to make sure I do all that I can to get the babies and mom what they need when theyre here. I got her vitamin enriched food, and some hatchling food that looks crushed up. I got a big cage for them, and will move them in when they hatch. Is there any thing else I should do? Thanks for your help.