A back and forth we had in another thread lead me to setup my system for Eyefinity. I had the HD5830 GPU and enough monitors in the house (one with Displayport), but I had never tried Eyefinity.
Pretty awesome -- as those of you set up this way know. Heck even my wife was impressed -- got a little grin when she viewed it the first time

Of course, maybe the grin was because she thought I spent a fortune -- but, I had spent nothing extra

Used 3 of my existing LCD monitors to setup a 5760x1200 Eyefinity arrangement (24", 26.5", 24") using the Dell provided Displayport cable and two DVI.
Setup was easy -- with an instruction PDF downloaded from AMD/ATI.
I found it interesting that the games I currently like best already support 5760x1200 in-game -- merely change the resolution under video options (the new resolution shows up as being available once Eyefinity is activated). But, not all games support 5760 natively -- including the "bigger budget" games I tried.
The wrap around effect is great. My entire eye field of view seems filled edge to edge (subjective feeling as, of course, the true eye FOV is nearly 180 degrees). By actual measurement, the Field of View from where I sit is 140 degrees. The side monitors are arranged at about 35 degrees to the center monitor -- they "wrap around". And the full distance across is about 56 inches. Wow -- really makes an impression.
Surprisingly to me, the HD5830 had no problem with 5760x1200 at maximum in-game settings -- including AA in one of them. These include: Neverwinter Nights 2, Two Worlds, Sacred 2, Drakensang, Titan Quest IT -- all big-environment role playing games which I am into currently while waiting for SoW:BoB. I did not try all my games (about 50 installed).
The new three monitor wide desktop is easy to use and practical, so far.
Probably no going back. I can see Christmas is going to be expensive -- matching monitors and the appropriate HD68xx card

Anyhow, this is not news to those of you using 3 monitors for months or years. Merely, my impressions FWIW.
PS: Heaven benchmark DX11 5760x1200 High Shaders, normal Tessellation, Anisotropy 4, AA off -- about 10FPS typical (12.4 average). Looks awesome -- to a geek like me

Almost usable -- but not quite smooth to the eye. A reason to buy an HD68xx
