okay, darwin can be fickle. i remember walking into one company and they told me that they were already overstaffed. next monday they hired me. things can change by the day and sometimes it is a matter of being johnny on the spot.
the general aviation apron in darwin is huge and somebody has to fly those planes (not to mention all the aircraft out at satellite bases). admittedly, things have probably slowed down over the last few months cos it is a bit hard to move up through the industry at the current stage.
i feel confident to say that northern australia has got to be where most general aviation takes place (apart from instructing).