My 3D Vision works absolutely fine on my 120Hz Acer. I am going to do a lot more searching on Google with regards to AMD HD 3D & Eyefinity before I decide if I will use the 7970's I have bought or sell them & get 660ti's, 670's, 680's or even one single Titan? I have been looking at 3D Smart TV's and CNET seems to favour the Panasonic TC-PST50 series for Picture quality & best overall in their end of 2012 reviews. Not sure if they are passive or active but, I do like the look of them. I also need to look at Nvidia's multi monitor performances as I went round my mates the other night as he has got six monitors in eyefinity and gaming on them was awesome!
OK this could get a little long winded so bear with me !
Firstly with 3Dvision any of the set ups you mention will be fine tbh. You're better going SLI as 3D (as you know !) really batters your performance levels. I have only ever ran it on a 7970 (boak !) GTX 480 SLI (excellent) and a single 670. On AMD I lost so many frames that most games were unplayable. Switching to a pair of 480s really helped given that they are miles faster than any of the latest GPUs.
I would avoid Titan as it offers
terrible £ to performance. For example a set of 670s can be had for (brb ! just checking :lol: )
http://www.amazon.co.uk/EVGA-GeF-GD...L3W0/ref=sr_1_1?ie=UTF8&qid=1362258575&sr=8-1
That much (quick equation...)
£577.94. Given they are around 20-40% faster than a Titan I'm sure you can see what I'm getting at. Nearly half the price of a Titan for more performance
Titan = Stupid...
Moving on. I wouldn't advise going three screens either. I have also used three screens (I always play Mythbusters with hardware dude, Quad SLI, Quadfire.. I've tried it all) because very few games actually support gaming on three screens and most need hacking and thus don't display properly. Remember - the main aim with any PC system is hassle free gaming without any crap and hurdles. Whilst three screen gaming can be fun for a while you'll soon tire of it and break the array down. I had mine going for about two months and in the end I had switched back to a single screen running 3D..
3D, IMO is about the best of these fad like technologies that have been released.
I'm not sure if you were thinking of combining
both 3D and 3 screens but I can safely tell you now there is not a set up on earth powerful enough for such a system. Even GTX Titan in SLI struggles with Crysis 3 on 3 screens and that's without enabling 3dvision. It would be an epic slide show though I'll give you that much.
In summation for me 3 screen gaming was all about Dirt 2 and Dirt 3. Other than that? everything else was a pig to get running and Fallout 3 was plain broken (the hacking screen was impossible to make out as the words overlaid eachother, there was no fix

)
I would stick with 3Dvision as your poison and go with a nice powerful SLI set up to make sure you get the FPS you need. Obviously a heavily loaded Crysis 3 is never going to run well in 3D but there are so many titles that do work well and go as fast as a ninja hamster in 3D.