Now this is a great idea: the Samsung Syncmaster 2263DX 22″ lcd monitor comes with a little 7″ 800×480 pixel LCD monitor on a rotating swing arm so you can position the mini monitor vertically or horizontally on any side/top of the monitor. Don’t worry about needing a dual output video card either: the 7″ monitor connects via USB.
I have two 24″ monitors on my main PC and I am always using all of both screens so it would be great to have a little side monitors where I could put widgets, im tool, email notifier etc.
The 2263DX also features a built-in 3 megapixel webcam, microphone, and 1.5w speakers. It is available not for an expensive $550.