we have been running an airport extreme for wireless access, but we have just purchased a time capsule for data backup. I see that the time capsule is also a wirless router. Is there an advantage to running them both? How would I hook them up to do this?
Only if you were to locate one of them where you had weaker signals and use it to extend the main network. Otherwise, you cannot have two routers competing with each other over control of the network.