I'm pretty sure I linked to that earlier in the thread, too (If I didn't,
http://win2kgaming.site90.com/phpBB2/viewtopic.php?t=7)
Most of the cool 9x modernization stuff I know of comes from the MSFN 9x Member Projects forum, and the 2K stuff comes from the forum at the link I posted for the XP API wrapper.
As for what Old Juul Posted, MINIX sounds interesting, and I hadn't considered BSD, good ideas.