@David: Can't wait for the book. Australia drives me (and I think would drive you) scatty with their misplaced (or missing) apostrophes and other grungy grammar.
I've been thinking about it for ages now. I have copious notes of the things I want to discuss. The problem is finding the time. I Had a burst of energy after Christmas and whipped out the entire contents list and the first seven chapters in about 4 weeks ... but then I got side-tracked by this and that. I need to rouse myself to another thrust ... after I've had a beer :-)