I'm not going to recommend the 931C until it gets a solid reputation (there's new technology within). Right now, there are few reviews of it. Don't let the wide color gamut fool you into thinking this is a photo editing monitor. It still dithers and frankly with such a wide gamut and such a low precision (6-bit), it may not even be able to produce traditional '72% gamut' colors that we're used to. You can see on the flatpanels.dk review that the calibration was awful at best (look at the second chart). Since I can't read Danish, I couldn't tell you for sure if that was the "after calibration" chart, but that's my best guess given my readings of their other reviews. The high color difference on the 931C's chart should tell you that almost any other TN is better than the 931C for photo editing, if you can say TNs are good for photo editing at all.
To be fair, they never marketed it as a photo editing monitor, but I just thought some would be curious as to what the extra color gamut really does. I'm sure it's a great gaming LCD.
Now obviously there are photo editing monitors with wide gamuts (100%+ via LED), but they also have a 10-bit color system.