Yes, food/groceries is a big expense for us (Adelaide, 2 adults, 2 kids). We shop around and frugally. I cook all our meals, nothing ready made and we can't spend less than $300 a week. I sometimes think if we didn't eat fresh healthy food we'd be better off as it is so expensive. It's the one area where we feel we should be able to cut down as it's all about choice but just cannot.
Rego, insurance, petrol will all depend on the car you get.
Water not generally included in rent here.
We don't have foxtel and survive. We watch far less tv than we used to anyway.
We have health insurance $108 a fortnight for all 4 of us including dental, hospital and extras. Ambulance cover $100 a year for a family.
We have solar so can't comment on electricity.
Internet we pay $60 a month but about to change to NBN so don't know how much it'll be yet.
Hope all this helps.