@nOmArch - it's a mixture of 1703 and 1704, FP, FPV and FPT models, all second hand. Took a a fair bit tweaking due to differing screen properties (colour, contrast and view angle etc.) - matched panels would obviously be better - but they're pretty well balanced for now.
@Slopey - one word: mouseview (AKA freeveiw, mouselook etc. (or are they all two words? whatever)) - makes or breaks a 3D game for me... For all my faves though, no problem - rFactor lets you reposition the bezels between the windscreen and dash, ditto GTA IV (w/ modded in-car view), most car sims in fact, and many 3D games let you mess about with view configs if you dig about - for instance Arma2 has an adjustable floating crosshair so i can center the sights on either the lower or upper panel.
For other games - usually lazy console ports - you might have to get in there with a hex ed or CheatEngine, but if all else fails you can always fall back to triplehead mode. All flight sims tend to come with mouseview...
maybe i could hack and re-frame the panels to remove much of the bezels, but to be honest you just get used to it - it's so awesome the limitations mostly don't bother you..
Sometimes i just switch back to triplehead mode for the super-wide 12:3 FOV. It's all good though, couldn't recommend it highly enough..