If I remember correctly Jeff Schewe says in the C2P tutorial that he uses an LCD brightness setting around 140, but MR seemed surprised by that and said he was under 120 (might have even said 110). And I see Andrew Rodney recommends 150.
It appears MR is using a "standard" print viewing set-up, and I would assume that Jeff and Andrew do, too. I tried 150 to start with my NEC 2190 but it was way too bright. I ended up at the manufacturer's recommended setting of 120, which gives an almost dead-on screen to print match. I print on a 4800 with IP and a 2200 with the Epson driver, all custom profiles, and view with an Ott-Lite.
Really curious to hear from those who get the best match in the 140-150 range and how you view your prints.