Cam,
you beat me to it!!
I would agree with everything Cambo has said the whole selection procedure was very similar for me. The interviews were a (pleasant) shock and I cant actually remember being asked anything about flying! He did have a quick look through my logbook but thats all.
Both interviews appeared very similar to me, I actually think I spent longer with the psychologist which was a little bit more of the "why did you choose etc" type questions.
Other than that not sure what else I can say thats not already been said in this and other threads. Check out the thread entitled "Britannia Stage II" - may give you a bit more of a lowdown on the group day.
Good luck
N.