The server at my host has hardware trouble, and they had to restore to new hardware from backup. Unfortunately they have this 100% uptime guarantee which means they attempt to serve sites while restoring from the backup. This severely taxes the server, and for days my site was essentially down. Discussions in their forums about past restores suggest that this is likely to continue for over a week!
My site appears to be mostly functioning now, though there are still timeouts (the errors says I'm still being served off backup), so I'm taking the opportunity to get this message up (hope it sticks, since it's on the backup).
Bear with it, sorry for the inconvenience.