My current video card is running 2 monitors. I want to add a 3rd monitor.?

I have only one PCI slot available. This means i need to buy a PCI card right and once i plug it into the empty slot, how do i install the 3rd monitor....is it plug n play or do i need to make adjustments to the settings?|||Windows XP SP2 should be setup to manage up to ten monitors in the display manager. Good luck finding a PCI video card anymore, though.|||http://www.computerhope.com/help/splitte…

http://www.computerhope.com/network/spli…

http://search.ebay.com/computer-splitter…