There is a tile store in the complex where my office is and I went over at lunch yesterday to browse and see if they had any pretty Mexican tiles. They didn't have quite what I was looking for but I found two types I really liked. When I had her look at the pricing, I decided to try and find something online - each tile was $50 so it would be $200 for the 4 I want to get.
Thankfully I found my new favorite website when I got back. It is called "Direct From Mexico" and they have not only the Talavera tiles I love, but beautiful iron and copper designs, and some neat furniture. The tiles there are only $2!
Here is my favorite: