I won a scholarship with a grant included that gives me $2500 to spend on classroom supplies. What should I buy?

Hi all! I'm a math teacher waiting for the state of Michigan to mail me my teaching certificate. I won a graduate scholarship to pay for my teaching certificate and most of my Master of Arts in Teaching. The scholarship also includes $2500 that I can use to buy supplies for my classroom. I believe that I will already have a classroom set of TI-84 calculators where I'll be teaching so I won't need that. Here's what I'm thinking of:

Document camera projector (if school doesn't have one for me) Computer tablet to record my notes onto a computer (Bamboo tablet) ??????

What are some must-haves for my classroom? I'm in a high school in an urban setting, near Detroit. I'll be teaching Geometry and Algebra 2. Thanks for your help!