Build yourself a temperature control with the following features -Temperature can be adjusted by the user. The desired temperature can be adjusted over a wide range, so the control is suitable both for regulating case temperature and CPU temperature. Fans are switched off if the temperature is low enough and several fans can be controlled with just one sensor and temperature control.
http://www.radiolocman.com/shem/schematics.html?di=47949
A versaile output interface that can control external devices direct from your computer. Uses freely available software and works with both windows and Linux.
http://www.zen22142.zen.co.uk/Circuits/Interface/pc_int.htm
The GP2X is an handheld running Linux. It has 2 arm-processors and a few peripherial interfaces: Available on the ext-port is a serial port which normally is used as a debugging port. Other hardware can be connected to it too, though.
http://spritesmods.com/?art=gp2xgps
Getting a superdrive into a cube is probably one of the "Holy Grail" quests for many cube owners
http://www.macmod.com/content/view/27/2/
Dr. Bob took it to the next level by adding another processor to his cube.
http://www.macmod.com/content/view/121/2/
80mm Panasonic Panaflo Fan Installation
http://www.macmod.com/content/view/23/2/