The clean driver install didn't solve my problem. Just rebooted in the middle of playing Skyrim again.
Here's my reliability chart! Keep in mind I just restored the system so in reality this actually all started on October 5th, not the 29th.
Some of the entries give me stuff like:
Except I don't see any memory.dmp in the Windows directory.
The majority of them just say "Windows was not shut down properly". The event viewer is full of critical errors that just say "Event 41, Kernel-Power".