Hey Langfire, welcome back!

This is a great place, and you're sure to get a lot of "advice". So here's mine.

Look at the Great Planes Super Sportster, or the Sig 4 Star 40 for that .40 with tuned pipe. My preference is the Sportster, but many have had great luck with the 4*'s as a second plane.

Both are quite aerobatic, in the "pattern" sense of the word. Not capable of "3D" type flight though.

If you're truly interested in 3D, you could try a Sig Somethin' Extra which, when powered by a large enough engine, is capable of beginner type 3D. (I don't consider 3D "flying" personally, but.... I think any maneuver that would kill the pilot is pointless. )

Tower Hobbies is the largest mail order house in the states, maybe the world. Not sure what they would ship 'down under' though.
http://www.towerhobbies.com/

Here's the Sportster. http://www2.towerhobbies.com/cgi-bin...?&I=LXAVR1&P=0

Good luck,
Dennis-