There is a pretty good bus route from the center of the city to the Uni, but it can be crowded during peak hour. You can get accommodation around the university, but it all depends on how much you want to spend! It can be expensive if you want a place to yourself as there is a very tight rental market in Sydney.
As for food, a great range of types for all different tastes and budgets, just remember that it may not taste the same as a dish from home due to different tastes and influences.
Contact the uni, as they will have some tips and give a hand to get you pointed in the right direction!
Best of luck!
