Debugging fatal BSOD
FYI: You can still begin the debug process as described in the article. The one catch is that in the case of some fatal BSOD's, the system doesn't have time to write the dump file before rebooting or locking. In those cases, you can utilize the live debugging method if you're comfortable with in that environment.
Of course, all of this becomes a LOT more effective and timely if you have access to MS source code (some do - others will never have it).