Hello, Gretchen and welcome to the forum
While a gourmet kitchen store will have some good things for pizza, such as a pizza cutter, it will most likely lack the most important tool for making pizza- a good stone. Kitchen stores also tend to have pretty ridiculous peels as well- pretty, but not really functional (too small, not thin enough, not a gradual enough taper).
The type of stone you go with will be contingent on your oven. What type of oven do you have- gas or electric? If it's gas, does it have a separate compartment for the broiler? What temperature does the dial go to?