There is a hardware add on that you setup as many monitors as you want.
You have seen this equipment before but probably didn't notice it. Go to your local computer store and look at the monitor section. There is one computer (usually crappy) that is hooked up to show off the monitors. Check it out.
Is that what you are looking for?
Soyo Dragon Ultra Platinum Edition powered by a P4 3.06GHz w/HT @ 533FSB
ATI Radeon X800Pro 256DDR <---Yeah!!! I finally got it!!!
1024MB PC3200, Creative Audigy LS, 2 x 40GB = 80GB RAID 0
Windows XP Pro, DOOM 3, CS, UT2004, BF1942 RtoR, CNC Generals
Finished Half-Life 2!!!!!!!!!!