Okay, 'tis your's for the pickin'!
http://www.midiwall.com/bug/misc/20070909_XMLog.zip
The ZIP is about 328k
It looks like there are two power cycles in there, but I've gone through 5 hibernate/resumes today, (two of them were hangs), so I'm curious as to why not all 5 are logged. Do you have a max size on the log? Or is it circular?
What I'll start doing is copying off the logs immediately after a hang. Sorry for this taking so long Scott.