Some interesting comments here. It's quite easy to fall at the final hurdle. What you do is you turn up, and after a day of questions, they say you didn't make the grade. At least, that was my experience.
Nothing to it really.
Congratulations Kimmikins. It's good to hear that good old fashioned commitment still works on occasion. This is my second attempt, so fingers crossed for me. Thinking about it, I do not recall seeing any posts from people who got through the selection process first time. I guess people who do are perhaps less likely to go on forums like this, but I think it is a fairly rare outcome anyway.
As for "walking into a job".... If only it were that easy!!