Can anyone remember the models in the H38xx range? How did they
differ? Since this was apparently the last of the 'better' *sunlit*
displays, it would be good to know which ones to snap up if they
become available second hand.

This Australian site shows that HP sell an upgrade to the latest
operating system for the H38xx (and H39xx, H54xx):
http://h50043.www5.hp.com/ppc2003/au/welcome.html

Cheers,

Jim Kelly