Jon F. explains the best tip for cooking pizza. You need to heat your oven as hot as it will go for at least an hour.
This is critical for making pizza. You Pizza Stone, needs at least an hour to be able to heat up to 500 degress F. Let me repeat that: your pizza stone needs to heat up at least an hour.
Remember: Put the pizza stone in the oven first, then turn the oven on.
Note that Jon F's oven goes to 550 degrees F. Jon states he wishes his oven heated up tp 900 degrees.
You can find more pizza stone tips and tricks here: Pizza Therapy How to Use and Clean a Pizza Stone.
Old Stone Oven 4467 14-Inch by 16-Inch Baking Stone