One book that I found, well after returning from the British Isles is, British English A to Zed, collected/edited by Norman W. Schur, who alternates between Kent and Connecticut. The ISBN is 0-06-272501-7, and it retails for U$ 19.00. He deals with many misunderstandings that we have, including a short trip through rhyming slang, and military usage, although much of the localism I was used to in East Anglia didn't seem to have made it into the book. I still found it a good read, and can recommend it to anyone kept in the dark by the way others speak "English."

Dave