Hi Ralek,
Photograph the Australian landscape — especially the outback — in colour, as the hues run wild and rampant and will delight and inspire. On long trips, especially bus trips, consider taking less equipment: less chance of anything getting lost and if you are walking some distance, you won't have to worry about the safety of the equipment you are not taking on your walk(s). We drive on the left in Australie, and in the outback, long distances separate towns and communities. Greyhound services most major Australian cities and Alice Springs to Darwin, and there should be some connecting services to take you to places of interest like Uluru (Ayres Rock), among many others. Consider what film you will need and make enquiries as to its availability in major cities like Melbourne, Sydney, Adelaide, Brisbane, Perth. Above all, bring a keen sense of adventure!