Found this video journal at The Wall Street Journal website, look at the simple lighting.

This is something that would be easy to re-create with speedlight type flashes like the Nikon SB-800, Nikon SB-28 or the Canon 580 EX.

Look here for other examples of 'a one light approuch' to portrait photography, or just hover over the The Wall Street Journal-logo in the video above to get a menu of more journals.