Until recently, I've had a near-perfect monitor-to-print match using SoLux 5000K bulbs (which are advertised as having an actual CCT of 4900K) to illuminate my prints and calibrating my monitor to 4900K. When I recently got my NEC P232W with SpectraViewII, I still got a good match, but not near-perfect. It turned out that a calibration at 5200K gave the best match.
So, Andrew Rodney appears to have a point when he recommends to tweak the monitor color temp to obtain the best monitor-to-print match, although I wouldn't go so far to claim that the SoLux bulb and monitor color temperatures are "all over the place".
