Matrox Parhelia & 3 screens
Flight Simulator using Matrox Parhelia and 3 screens
One of the most impressive computer hardware upgrades I've ever come across was the Matrox Parhelia video card. Through one video card it allows computing on 3 screens. This provides a significant benefit when doing web design, panoramic photography, and image editing. The maximum resolution is 3840x1024 and offers 16x fragment antialiasing as well as 10 million colours, if you have that discerning an eye.
The Parhelia allows for triplehead gaming in a wide range of games including Ghost Recon, Flight Simulator 2004, IL2 Sturmovik, MS Combat Flight Simulator 3, as well as a selection of racing games. Click for the complete list.
If you're interested in running 3 screens on your PC with NVidia, ATI, or other video cards, read about Matrox Triplehead2Go.