OK, I did what was probably a really dumb thing. I was looking to remove excess junk from my HD and trashed mail in what should have been an invalid account, in a folder labeled POP-(myoldadress)@mail.yahoo.com - which is a mail account which I never use and which is disabled in Mail. Imagine my surprise when I reopened Mail and found that all of my messages in my current account (@comcast.net) had been deleted instead! On further examination, I find that there is NO folder with a name which includes comcast.net on my drive.

I'm most likely royally screwed. Data Rescue hasn't been able to find the trashed messages.

Is it possible that Mail stores messages in mis-labeled folders? Has anyone else experienced or heard of this? Any other ideas for getting my stuff back?