02005/10/24:
Bought a flexible camera clamp to get the camera as close as possible to the projector to achieve an identical (congruent?) perspective.
http://www.maplin.co.uk/Module.aspx?ModuleNo=45387&&source=14&doy=24m10

Set up the infrared floadlight. It did not work at first until Alan brought the light detector to my attention. It has to be very dark to activate it.

The floadlight creates a cone of light that is not wide enough. Peter recommends a fresnel lense to create a wider beam. Maybe we need a second Infrared floodlight?