Startech.com has a 4 Port Dual Input VGA Matrix Video Splitter. Allows two computer to provide simultaneous displays on 4 different monitors Allows you to switch video signals to any desired monitor Daisy chainable for use with more than 8 monitor hookups Equipped with easy to use front panel selection buttons High video bandwidth (250 Mhz) provides resolution of up to 1920 x 1440 pixels Includes an AC 7.5V power adapter Works with VGA, SVGA, XGA and Multisync monitors