i would of thought that if you have 2 graphics cards then it would not lag but i havent tryed it yet and on the subject i got a new desk lol ^^ but still the sme pc/monitor and stuf so i wont bother posting a pic unles you realy want me too ha ha.
but i do like the idea of having more than 1 monitor, i know this guy who built a cockpit for playing falcon 4.0, he had a diffrent screen for every view and it realy did look cool but he spent quiet a lot of money on it and also lots of time geting it to work so i dont realy think its worth having more than 1 monitor tbh