I'd rather have one large display than two medium-large ones, so I can keep what I'm mostly working on centred for ergonomic reasons. But having a two medium-large displays is definitely better than one, IMHO: modern software puts so much clutter on the screen that the useful working area is often just a small fraction of what it used to be when everything was designed for full-screen working. I consider the second display to be the equivalent of having a 3GHz chip and 4GB of RAM now so my poorly programmed word processor can let me type the same letter I could write with a 133MHz chip and 256MB of RAM a few years ago. :-)<p>By the same token, I totally understand people who want a big central screen and secondary screens either side for supporting tools/reference information. As long as the set-up doesn't have a break in the middle so I can spend most of my time looking straight ahead rather than keeping my neck permanently kinked to one side or other, I'd find such a set-up very useful.