Hey awesome! It worked! PC shut down perfectly! In fact, before you responded I was able to fix it myself by adding the HPET fix and some code from this topic:
http://Olarila.com/forum/viewtopic.php?f=19&t=1033
Strange, since there are no hpet errors in the console log. What did you do to fix it? Looking at your DSDT fix, there's no modification to the HPET device...
I've attached what I did to fix it myself if you're interested.
Only thing not working now is wake from sleep - PC goes to sleep now with this fix and sleep states S3 S4 and S5 are defined in the console log, but it doesn't wake.
Again, thank you, you're a genius.
sendme.zip