Here are some pictures of my control box and popper. The striking resemblance to David Turnbull's box is due in part to the fact that I looked at his page before I built this and liked his design, and in part due to the fact that Radio Shack has very few styles of project boxes and 10 amp illuminated switches.

The top of the control box: The dial is for the dimmer that controls fan speed. The switch on the left is the on/off switch for the box, the switch in the middle controls the motor heater, and the switch on the right controls the main heater.

The back, and the inside of the box:

Here is the cable I use to connect the box to the popper, and the back of the Salton popper I modified first to use with the control box: