But surround can be a pita, if you want to watch a show or browse a forum, WHILE playing, you can't.
That's why I added an accessory monitor to my setup. 3x28" surround and a 28" on top.
Since you have a 6xx series, you can plug a 4th monitor into the 4th port and be good to go, I had to get a seperate video card with my gtx 580's i have in sli.
Also, you have the room, seperate your chat windows!!!
My print screen ss: http://i.imgur.com/QbXOWrL.jpg
My in game ss: http://i.imgur.com/0fIFsb9.jpg
Actual picture: http://i.imgur.com/I8b1FYZ.jpg
Personally, I don't care for 16:9 with tri-screen, it's to weird of a ratio. 16:10 feels better to me, but it's getting more and more difficult to find monitors at that resolution.