If i have 2 cards of nvidia will i then need to have 2 identical cards - or could one of them be a slower one?When i have 2 cards then i have 4 x DVI ports, will it then be possible to run 3 screens for view and an extra one for lets say avionics?

You only need 1 nvidia card to run the 3 monitor setup. You get a piece of hardware called triplehead2go. Alot cheaper than a second graphics card. And if you sli 2 different cards, the fastest card will slow to the slowest card. So pointless getting the faster card.

Digging up an old thread here, hope you can help...I can´t decide what to do, TH2Go or Eyefinity.With 3 monitors each at 1980x1020, will I get this resolution with TH2Go?Read somewhere that TH2Go reduces to around 1680 and the screens looks twisted or something...