Tolarian, something that no one mentioned. The Mormon Temple in Mesa (massive structure, biggest outside SLC, if I remember right) has a Christmas display every year. At least they did when I lived there, but I will assume they still do. They pull it down pretty quickly after Christmas, but it is worth a trip. I *think* it is on Main, but it has been 4 years since I moved back to LA.
Enjoy your trip.