That helps a lot; I was downloading metadata with a rightclick from the list screen rather than opening the books one by one.
Considering the number I'm dealing with, I suspect I'll be using this to manage the books as I'm ready to put them my device -- when I can take the time to make sure they're correct -- but leaving the bulk out of it.
Although as I know from my music management, at some point I'll snap and start entering them all anyway.
