I have a nice i7 920 homebuild with an HD4890 video card driving two monitors - 1680x1050 and 1280x1024.
I have another matching 1280x1024 monitor laying around, if I just pop in a 4350 or 4650 or 4670 video card am capable of running 3 or 4 monitors? I have no need for 4 monnitors, but would...