I finished recovering my email and am thus reading and answering email regularly again. Although of course if I didn't answer any emails you may have sent within 48 hours of you sending it, it probably means that it has rolled into one of the categories that means I won't be answering it for a long long time, so if it was important, maybe send it again. :-)
There was indeed one corrupted folder, but I believe it was a duplicate of others that were not corrupt, so nothing was lost.
I'm thinking though that as a separate thing, since I've had so many issues lately, I'm going to try a completely clean install on my external drive, then migrate things a bit at a time from the old drive as needed. That is a lot of work, but I find myself hankering for a nice clean system. If I do that, it probably won't be until this coming weekend, but if I do it it will probably put me out of commission for awhile as well. We shall see.