For just $299, you can connect three 19-inch monitors to any workstation/desktop/laptop computer with the Matrox TripleHead2Go. This palm-sized box is compatible with Windows systems and allows for 3840×1024 max. resolution accross all three displays with a massive 45-inch total diagonal. It also enables Surround Gaming by spreading supported 3D games accross all displays.
“For gamers, three screens enables an immersive experience by engaging a players peripheral vision and allowing them to see the gaming environment as if they were looking through an extra wide-angle camera lens; it just makes games more fun.”