Anyone Have a Triple Monitor Setup?

I just bought a Dell U3014, so now I was running two Dell 30" monitors on my Geforce 570 HD v.c.. Then I bought an HDMI 10' cable to connect my 1920 x 1200 25.5" Samsung Monitor, the HDMI cable is 4K capable. But when I tried 3 monitor capability on my 570 the Nvidia Control Panel said this GPU only supports 2 monitors! That sucks because when the 570 came out it was the 2nd best video card to get, it's good it can handle dual 2560 x 1600 displays but I need it to run an additional 1920 x 1200 display. Now I see reviews on Amazon that the 780 will run triple monitors at 5760 x 1080, but I hope my combo is not a problem - two different screen resolutions. Anyone successfully run a 3 monitors setup like mine? What video card do you use?

I guess the weakest link on my $6800 gaming PC system is the 2.5 year old video card. I don't want to buy the best 780 out there now because the 880 will come out Q1 or Q2 2014 - about time to upgrade my video card! But the 570 can play some games above 40 fps at 2560 x 1600 resolution, but it just runs one monitor.

I guess an SLI setup can easily run 3 monitors - is this your setup and how well does it work?

And what games are triple monitor capable? I heard Battlefield 3 is one. What ARE THE OTHERS?