The Microservers are small, low power (mine uses 23W at idle) servers with 4 hotswap disk trays. They're pretty cheap (£200), and currently have a £100 cashback offer available.
Kimball and I were discussing at the weekend getting one for the space, for general file storage (datasheets, software, debian / ubuntu proxy), running some of the stuff that's currently sat on alfred, a camera proxy, a thin client server and ldap server for spacenet.
Pledge for http://www.ebuyer.com/430446-hp-proliant-g7-n54l-2-2ghz-microserver-ebuyer-704941-421
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