Hiya,
I haven't fown in South East Queensland for a while but did most of my training down there. Great place to go flying, all of the islands in the area are great to see from the air, and although the mountain ranges aren't particularly big, they make for a pleasant distraction on the way.
Gympie is a pretty good airport by Australian standards, however that means its really small with minimal services. The other problem is that its no where near town. If you want to go to Gympie itself, be prepared for a long wait and an expensive taxi fare.
Get a Brisbane / Coolangatta VTC, a Brisbane / Oakey VTC, a Brisbane VNC, a Brisbane WAC and an ERC for that area (can't remember which one). The VFG is an excellent publicantion that should see you through. Just make sure it gets some use before you come over.
Most of the operators in Archerfield are friendly and as there is an excess of instructors sitting aound doing little, you should have plenty of opportunities to work out any differences with people in the know.
Anyhow, enjoy the trip!