Power is still out (took me a while to remember that emma's iPad gets G3 service, making possible this msg). The weather is perfectly clear and the pse website has no service alert posted, meaning this is an entirely local affair, probably just limited to our neighborhood, probably just a (really nasty) equipment failure from the looks of it.
I have a bad feeling about this one, but we'll see...
Update (11:20am): And we are back.
The last mail server log entry was at 6:54am, and since we get a pretty continuous stream of spam these days, that's a pretty reliable indicator of when the problems first started, meaning our power had been doing that on-and-off-flicker shit for a full 40 minutes before I woke up. Apparently we never actually made it through a full reboot, just kept getting whacked in the middle of fscking a 500G disk.
I love ext3 filesystems. No, seriously. Just in case you were wondering.