Update :
Just got the Matrox Triple head. Also got 2 19" Samsungs to go along with my old 24" one. Got a Ergotron stand which holds all 3 monitors while clearing out the desk quite a bit. All 3 monitors can also be swiveled into portrait or landscape, and the stand will let you tilt/raise/lower all monitors in unison. I mounted the 19s overlapping the 24 instead of flush side by side. This eliminates a lot of thick bezel that my old 24 has.
Im running on a 8800GT. Im running AH in 4032 x 900 with a 145 degree angle.
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Old screenshot at 1900x1200

New widescreen shot


The screenshots dont do it justice - but I feel like Ive lost very little in the vertical for the gain in the horizontal - the 145 angle is the key. Framerate has taken no hit, and I run in high res with all the textures preloaded.