[Hampshire] [OT] 3 monitors, 1 PC

Hi all

During the recent Northern Rock crisis, I noticed the "trend" now amongst power users seems to be three monitors (presumably driven by the same PC) arranged in a sort of horse shoe.

Just wondering how this is achieved - anybody know if it's 3 ports on one card or one via the onboard and two via a card etc? Presume easy to setup on Linux? Also, for ease of googling - what's the search term "triohead" as opposed to dualhead?

Cheers
Rob