If I can be selfish here for a second:
Yesterday I stopped in a place I frequent and got a couple slices. I was talking to the owner about oven temps. and mentioned that I have a stone at home, but it's a small round one. He said how he got new stones in his oven recently. I said that I went to various places, and had a hard time getting unglazed quarry tile, without special ordering it. I would gladly buy one from him if he can order it. He goes in back and whips out a big box, opens it a there is a big 26x26 stone in there, bout 1/2 inch thick. He said I could have it because it's chipped,which it was, but only in a corner, smaller than a piece of bread. Apparently, the company shipped it, it cracked and they then sent a replacement, but didn't want the broken piece back. Free baby, free.
I am in pizza heaven. Looks like home made pizza for a week!!