[Skunkworks] where to buy/get/steal 21" Monitors

Anyone know where I can get a pair of 21 inch widescreen monitors (24 inch will do too). new or otherwise so long as they work is fine by me. http://www.gadgetreview.com/wp-content/uploads/2011/04/Dell-ST2220M-21.5-inc... an example. JGitau