Following up on my previous post about unfair pricing of games in Australia, particularly Steam (but the gripe with Aussie prices is just as relevant in regards to EB Games and Game, our two largest physical retailers), I've come across a really useful site, Game Cafe.
Game Cafe has a list of multiple sites that will sell games to Australia (including ozgameshop that I referred to earlier). It's basically a crawler that checks all these game sites and updates their prices (including shipping to Australia). You can search any game and platform combination and it'll give you a list of 50 or so of the retailers available to Australia ranked in order of their price.
It's going to be my new first stop when checking out game prices.