Using a Phenoptix IR torch can make a huge difference to photography with the Raspberry Pi PiNoir camera board and it's really simple to solder. Here are our results for our Birdbox Garden Deterrent:
Nighttime with IR torch off
Nighttime with IR torch on
One thing we did find is that a lot of IR light leaks from the back of the PCB and can then leak through the PiNoir PCB because we've got everything contained in a small box. We've put a lot of black material in to reduce this, but some leakage is visible on the bottom-right hand side of this shot. We probably need to correct this next time we open up the box.