I buy new fresh kodak and fujifilm on eBay, one seller from the U.S. have gotten from before, typically others are Thailand, Hong Kong or Taiwan. They have to re-stock to, so there's no difference really if they are moving a lot of film.

I sure as hell would never pay the rip off prices Australian shops charge. Though Vanbar seems to have a reasonable Tri-X 400 price in 120, so thats alright.