I currently have a 3 monitor setup, which is working wonderfully.
I have a 4th monitor which matches the other 3, and think I should incorporate it into my setup (mostly "because I can"). I've read that having 4 monitors actually doesn't help productivity, and experienced first hand the annoyance of having to shift my head too much.
What I would like to do is place the 4th monitor on top of my middle one, however I need recommendations on what to do. A wall mount isn't likely to be an option, has anyone seen some kind of "double high monitor stand" that they could recommend? stability's not a huge issue, as the stand would be resting against the wall (that I can't use the mount on).