Nice work Howsweetitis. They told me after the phone interview I'd get an email about a week later re: the Panel Interview.. so you should hear back anyday now.
I have heard from a lot of current ATCO's that the Interview is the hardest stage... so yes, prepare the best you can.
Pyxie, I was informed that 12 recruits will be on the Sept course, however they are looking to run back to back courses apparently.