G'day Essexlad,
Yes it's possible, most things in life are if you work hard enough.
We emigrated downunder in 2008 after 22 years service in the RAF, whilst I didn't transfer to the RAAF I know of a few guys who have. Not easy mate but anythings possible.
The ADF in general always seem to be recruiting, deffinatly worth looking into if you are serious about it.
As for the lifestyle, well despite the current government being hell-bent on screwing things up its still a great place to live, no regrets here :-)
Good luck on your quest.