Just been using these AV920 screen goggles with a camcorder and WOW!!!
http://www.firebox.com/product/2029/Vuzix-iWear

Sorry to be a pusher of the commercial stuff, but these things are amazing.
Plugged them in to the back of our camcorder and set it on night-vision. I
was walking around the house, with just the street lights coming in through
curtains, and it was like being in Silence of the lambs. :-)

Well worth a Christmas gift for someone who likes video photography and
stuff.