Regarding interesting OS's that run on XT's:
Amstrad shipped a little GUI with it's PC1512's and 1640's called GEM. It
requires two
360K drives and 640K, I think. Cliff Lawson has it in a file area off of his Amstrad web
page
http://web.ukonline.co.uk/cliff.lawson/info.htm
It's very similar looking to GEOS for the c64.
Kirk Scott
scottk5(a)ibm.net