Steve,
I have used APC battery back ups for years and you can get them in several price ranges. I believe that Office Depot handles them if you want to look at some. They use the batteries the same way we did at the switching computers. They provide some filtering and surge protection which is pretty good. The price will depend on just how long you want to be able to run your equipment if the power goes off and you are running off the battery. I like mine with the 5 to 10 minute capacity depending on how many windows and things I have going.
Ron
