I solved my problem. After contacting Apple and NEC (who were both very prompt and helpful) I connected the Apple to the Mac Mini via HDMI (Apple told me which adaptor to order), and the NEC via one of the Thunderbolt ports. Everything works wonderfully! javascript:void(0);
I got the 'white' Spectra Vision II version. It is actually very similar in colour to the Mac equipment and fits right in. Interestingly, even non photographers have made unsolicited favourable comments on the NEC. The Mini seems more than sufficient for its duties as well, so this could be the set up for a while to come.