If you intend to book tours to bring you around Melbourne (e.g. great ocean road etc), this is what you should do. Get a backpackers card and go to a backpackers place to look for brochures (its also available at the tourst info at Federation square - but less variety at Fed sq). The tours are about 40% - 50% cheaper. You will end u getting up the same tour bus as those paying the "full fare". Do note that the flyers/brochures are only available at certain spots cos it is for backpackers and u need to show the backpackers card (not sure if they check expiry date though).