Part of the answer to this question depends, oddly enough, on whether you're in the US, Europe, or elsewhere. If you're in the US, then you can buy a non-SV version of the monitor and either use your Display 2 with the Eye One Match software, which (at least in versions 3.6 and higher) will profile it nicely in DDC-CI mode (with an appropriate video card) but won't hardware calibrate it, or buy the NEC Spectraview II software separately and use it with your Display 2 to both profile and calibrate the monitor. I recommend the latter as the software is really nice and produces great results, but you can do just fine with the Eye One software. The US SV versions simply bundle the Spectraview II software and a Display 2 puck with the monitor, so that's the way to go if you don't already have a compatible puck.
In Europe the story is different. Apparently NEC Europe disables the use of their Spectraview software (which is different from the US Spectraview software) on non-Spectraview versions of the monitors. Don't ask me why; I'm sure it seems like a good idea to them. I also don't know whether the US Spectraview II software will work on an EU-spec monitor.
And in the rest of the world, I have no idea what the answer is.
BTW, this is the current xx90uxi line we're talking about — the 2090uxi (which I have and love), 2190uxi, 2490wuxi and 2690wuxi. The last of those is rated to cover 92% of the Adobe RGB gamut; the others less but they're still excellent.
Nill
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