Excuse me while I momentarily slip into huckster mode, but I hadn't realised the UK website Play.com also sold books. This is significant, because they have free postage. So, er, you can get Angel Stations for a sum total of £8.49 (link). It's still a quid cheaper over on Amazon, but only if you spend at least £19.
... by the way, I am not the author of the book listed under 'other books by...'!