Hello, Miles, and welcome to BYC!

Glad you joined.
Feed them chick starter with fresh water available at all times.
I made this and it helps tremendously in keeping the water clean and the brooder dry. You can use any plastic sports bottle, drill a hole in the bottom and thread in the vertical poultry nipple. Hang it on a chain and adjust the height as the chicks grow.
You can offer food 24 hours after they hatch and are dry and warm.
I also recommend a momma heating pad (MHP) or a brooder plate over a heat lamp. Heating with a MHP or brooder plate will allow the rest of the brooder to stay cool and greatly helps to reduce the incidents of pasty butt.
Babies are more agreeable to being held. They start to get more standoffish as they grow though. They are prey animals and should be cautious.
I offer plugs of sod from the ground they will eventually live on. It offers them the opportunity to scratch around in the soil and get some grit as well as start to build their immunity.
A few other things I would purchase before they hatch are chick electrolytes, Poultry Nutri-drench and Corid 9.6% liquid. These items can save a chicks life if you come to find out you need them.
You also need to know now what you are going to do with the cockerels that you hatch out. You will either need to move them into their own grow out pen to be raised for meat or try to find homes for them or allow someone else to put them in their freezer. This is just the reality of the life of a male chicken. You could try to keep one but I don't recommend it for beginners.
And if you are going to start raising the pullets to keep for eggs, you and your parents really need to hit the coop articles right now to find out what you are going to build for a coop and run. This cannot wait until after they hatch. Chicks grow very fast and you need to be prepared to be a responsible chicken keeper.