Process Monitor v.1.01 Update:
Mark and Bryce have fixed a bug in Process Monitor that prevented it from working on some non-US English (localized) versions of XP. Thanks for your help debugging this!
Check out this blog on Process Monitor: Filemon + Regmon = Process Monitor 1.0. It enumerates many of the displayed operations.
Thanks for all the feedback and help finding issues with this new site! Here's what's been updated in the past 48 hours alone. The biggest update in the addition of the 'Utilities Index' page and the addition of utility version/date info to this page.