Antarctic astronomy: this is the last great frontier for ground-based astronomy. Our group at UNSW is leading the Australian involvement in establishing large optical/infrared telescopes on the antarctic plateau and has successfully run instruments at the US South Pole station since 1994. Five of our graduate students have been to the Pole during this time.
Wide-field robotic telescopes: I am collaborating with Carl Akerlof's group (University of Michigan) in 3rd-generation robotic telescope at Siding Spring Observatory, about 500 km from Sydney. The telescope sits next to our own Automated Patrol Telescope, and searches for the optical counterparts for gamma-ray-bursts: mysterious explosions that can convert a solar mass of material to energy in one second. Other projects include searching for planetary transits and Kuiper Belt Objects.
Instrumentation & computing: my long term interest has been in electronics and computing (both hardware and software) with the goal of building new and interesting astronomical instruments.