Extra purchases with race wheels

Thanks to all who have offered their advice on which race wheels I should buy. Now I have another question. What else do I need to buy with the wheels? I am trying to purchase online vs buying through my local bike shop. Wheels, tires, tubes, and cassette are obvious, but what else? Do I need to buy ZIPP brake pads? How about a casette body? What else? I really have no clue what I am doing, but I do have the desire to order tonight!

Thanks, Kristen

Rim tape, tubes and tires… and a cassette if you have to, but you can get away without one and swap the one you have around when you need it. I personally would get a new cassette too

Weeman