Sean Williams, sf and fantasy author from Adelaide, is interviewed by Rob Bedford on the SSFWorld.com website. "I do find that writing SF and fantasy can be very different on both a nuts-and-bolts level and in terms of other fundamental perspectives. Fantasy is more overtly about character and landscape, while good SF self-consciously uses science and the scientific method to take us places on wings made of metal, not feathers."
[Link from Sean's website.]