Checkout this 5 x 30″ Monitor setup using an AMD Radeon HD 6990 video card. Pretty amazing. It’s so large you have to sit back from it to get the full view of the game playing.
“We are taking you beyond the boundaries of traditional PC displays. AMD Eyefinity technology expands the traditional limits of desktop computing by multiplying your screen area. With multiple monitors, games become more immersive, workstations become more useful and you become more productive.”