I've been on the look out for more city names to use for the civs I play. Found this Aztec map today. Not Sure how it will look but I'll attach it...

If you don't already have it, download "Conquest of Mexico" by Jesus Balsinde from the Spanish CivII site. Its theme is the unification of mexico by the Aztecs. There might be some more city names for you there... ;) It's a good scenario, too.