Jonathan buys his camera gear at JB Hifi in North Sydney (https://www.jbhifi.com.au/Stores/Store-Finder/Store-List/NSW/North-Sydney/). The staff there are fantastic. Nothing is too much trouble for them.
Jonathan gets his camera gear serviced at Whilton Camera Repairs in Elizabeth St, Sydney. Chris Wong, the technician there, is a legend. There's nothing he can't fix. http://www.whiltoncamera.com.au/