I'd also reccomend the Asus Eee Box.. It's a brilliant little PC for general server roles. Its small, and uses an atom CPU so idles around 10 watts at most. I've got one set up for home automation, power monitoring, weather station, and many more things. http://www.asus.com.au/Product.aspx?P_ID=QUObl5lSRQQ3lSqJ No CD drive, but can easily plug in an external USB drive, or just install from a usb thumbstick. I wouldn't know why you'd get anything else, this thing is feature packed and cheap! got for $300AU, would be less in USD.