You will need Chick starter, medicated or non-medicated, thats up to you. I find that the medicated starter crumbles are smaller than the non-medicated. So if you are having bantams, you will need to grind the food up for the first week or two. Sometimes it is too large to fit in their mouth.
A 1 gallon waterer
A feeder
Get some Vitamins and Electrolytes to add to their water for the first week or two. I find that it helps the chicks adjust to the food, and it is great for bantams and shipped chicks. It isnt necessary, but I find it a great help to the chicks.
Get a bag of PINE shavings, nothing other than pine. For the first week use straw or pine covered with papertowels until the chicks learn to eat out of their food dish.
Get a red heatlamp, as the regular white heat lamps tend to make them peck eachother.
For the first week a large plastic tubberware container works around 18-30 gallon one. Or you could use a large cardboard box for the first week or two. Just make sure that the chicks cant get a draft. I have my chicks in a wire brooder, and I use two of those cardboards that children use for school projects, and stand them up around the brooder to protect them from drafts.
Have fun!
What breeds are you interested in or are getting?
How many chicks are you getting? I find I use maybe 2-3 bags of layer, and a bag or two of cracked corn for my chickens. Possibly more. But I have 14 large chickens and around 30 bantams. Plus 8 geese, and 17 call ducks.