If you're starting to think your gaming setup is looking really good, you might checkout this snapshot. Which was created purely to make the rest of us green with envy.
A reader on Kotaku apparently installs PCs for a living and helped install this one in a government office. It is twenty-seven 67” HD monitors. Which means the display is 40ft wide and 15ft high with a desktop resolution of 12600 x 3150.
He claims to have played both Bioshock and WoW on it. Although there is the strong possibility he just posted the login screen up there and never played. Even if he had played on it, being stretched out that badly I would think would give most people a slight headache.