Welcome to Fauna, Rebecca!!
It's great to see someone that makes sure they have everything right BEFORE they get their new critter!!! And Leos are a wonderful introduction into the world of herps, but I warn you, once you have one, more are sure to follow, lol.
This is a great place to learn good info......browse through the Leopard Gecko forum, you will probably see many of your questions already answered somewhere along the line.....and if not, feel free to ask! And we always love to see pics of new additions as well!