For the people that use eyefinity, do the monitor edges just dissapear from your view after a while? I feel as if I couldn't get past that issue.
In some games and not others. Its odd but I could never quite feel right in battlefield bad company 2 and yet in F1 2011 and Arma2 I don't see them at all anymore. To game at 5760x1200 you do need a lot of graphics performance, especially if you want the eye candy turned on as well. 2GB VRAM per card is essential as well as I have unfortunately found out having bought a 5970.
If you haven't used eyefinity find a friend or a PC shop with it setup and play with it for about 20 minutes. That is long enough for the initial feeling of seeing the bars to fade and also should allow the feeling of being somewhat visually overwhelmed to ease as well. You don't appreciate what you miss visually with a single monitor, but when you add all that peripheral vision back in your brain has to learn again how to concentrate in the game, it did for me anyway. It really does make some games awesome.
The first time I played BBC2 I was cowering in a corner with a feeling of fear from all the explosions and shelling, my brain was just overloaded. I've played hundreds of hours of the game and eyefinity reduced me to a little girl due to the extra visual impact. However within 5 minutes I had spotted 2 flanker in peripheral vision and got the jump on them because they weren't directly facing me they didn't see me coming. Had they had Eyefinity we'd have spotted each other at the same time. In Arma 2 I use it to get a full view left and right making coordination with a fireteam easier. In F1 2010/2011 it gives you the ability to look into the corner to spot your turn in point or makes it easier to choose a breaking point off the track.
I would like to move to 5x1 some day so I have a full 180 degree to the front FOV without the stretching we see today. It will solve a lot of the limitations we have with visibility in modern games and amp up the realism another notch. I hate it when I can't game eyefinity because of performance problems or game issues.