I'm currently looking for cubical gear - I can't really stand working in a cubicle - and my cubicle is right at the entrance to the office, so everyone who walks in is looking right into my cubicle, and over my shoulder.
I disagree with at least part of the premise of a cubicle - that workers will be more efficient and work harder if they are never allowed to see or hear or interact with their co-workers. Who thought it was a good idea to have a team of people who were unable to work together because walls were between them. I'm imagining what a football team would be like if they players couldn't see each other. The game wouldn't work too well.
From cubicle warfare weapons (potato pellet gun, and mini catapults) at http://www.x-tremegeek.com/, to Feaux window frames (I had the idea, didn't know people actually made them just for cubicles), to lamps and magnets, I will turn my cubicle to something other than the sterile efficiency that it is now.