Downies has a big sale at their South Bank branch in Melbourne (not sure about the other stores) where there is pretty much 10% off all the coins in store and then some bargain tables with coins up to 50% off. I always liked the Kangaroo at sunset $1 silver proof coins - managed to get a 2013 proof for $39 which I thought was a decent deal. Sale started yesterday so probably missed all the good stuff but there was still lots available. Sale ends tommorow apparently.