Only a month late... the beseler 67 is a nice one... i have that one along with a 23c... I have them on a desk... with the column flipped on the beseler 67 so that it sits on the edge of the desk and i just project on the floor for 16x20 prints with a 105mm lens. I've seen other people mount the column to a wall for really huge prints. Anyway... those are extremely inexpensive. and i like them.