Pics/Idea for Dual monitor setup

I am currently debating as to buy a second monitor, a 24" Samsung(to complement the monitor in my sig), and wanting to put it in a stacked vertical configuration. Is there a way to do this without buying an expensive mount setup? Perhaps if I leave one on it's stock base, and mount the second monitor directly above via a wallmount?(that I already have)

Any pictures or comments? Thanks