I use my thick aluminum baking pan to defrost also. Since they are so good at pulling and dispersing the cold, you can use that to freeze things too. I use it when I'm freezing things like green beans, or blueberrys, or even pancakes. It cools down quickly and holds the cold and transfers that cold to the food quickly. I just lay what I want to freeze on then pan and pop it in the freezer on top of all the other frozen stuff.
Quoth the chicken, "Fry some more."
AB - Good Eats: Fry Hard II