A 660ti will definitely work with these monitors, it's just too new to be listed as compatible. And from what I've seen the 660ti struggles with high resolution + AA.
I'm really interested in those, but my only concern is that I have a 660Ti, and nobody is listing them as compatible with those panels through a DVI-D connection. I know my card has a DVI-D port, and looking at it's specs the max resolution it can do is 2560x1600 so in theory it should work, but I'm concerned a bit still.
That plus I don't know what kind of performance I'd get in games too - I keep reading that my card has problems with resolutions higher than 1080p, so I don't know what I'd get a 1440p. (I have an i7 2660k, btw - CPU power really isn't an issue).
Anybody has any experience with that?
The good news is that AA is really not that important at 1440p. I say go for it.