Power Switches

Sparkfun, an online hobby electronics store, is selling an AC power switch that can be controlled with TTL logic, as well as the Sharp optoisolated solid-state relay itself.

I kind of wanted to run a low-power server to make available lots of storage which I could switch off to save energy when not being used.  It could also be useful for security for preventing sensitive data from being accessed, should the server be exposed to the Internet.

Raspberry Pi seems like an ideal candidate for such a system.