One other thing with computers. I live in an area with lots of thunderstorms, and miles of open wires, strung from pole to pole, bringing the electricity to my home. Surge supressors will NOT dissipate a lightning strike on these wires, even if it is a few miles from your home!
I have used surge strips and panels that fit under my monitor, with individual switches for each device. In either case, if you are going to be away from home for a while, unplug the master cord(and cable between the wall jack and the MODEM plug) from the wall before you leave. Electricity can easily jump the few hudredths of an inch between normally open switch contacts, but has a harder time jumping 6" to a couple of feet from the mains socket to the unplugged power cord for the surge strip/switch box.
And of course, it is dodgy using the computer during an electrical storm. But we all KNOW that, don't we?
Dave