Just a quick heads up for those further down the application process...
Graham Duke's Air Traffic Control is proving somewhat hard to come by at the moment. Ninth edition is basically out of print, and the tenth as far as I can gather has yet to appear. Most major UK booksellers have now sold out (this includes Amazon, Borders, Waterstones and Heffers/Blackwells), and other sources, such RSGB and aviation shops have run out too.
I've spent over a week trying to source the ninth edition, eventually coming up trumps this afternoon when someone put one up on Amazon second hand books - don't wait til the last minute before you try to get a copy....