Router controller and power supply box
This box (which used to be the drive-holding part of a broken Dell PowerVault 2008 scsi raid) houses three STMD (http://www.bright.net/~agarb/STMD/AVR_STMD.html) stepper motor controllers, two power supplies (12v@1a for logic, 24v@4a for steppers), and a cooling fan (also from the scsi raid unit). Out the back are three runs of Cat 5e (one to each stepper motor), a parallel cable, and 120v. The STMDs blink calmly as they work.
Also in the picture you can see my old scope, newer function generator atop that, some costco tortilla chips, a box of Kleenex brand facial tissues, and EMC/Axis running on the lcd on the right above my multimeter.