well there seems to be a few other 'Tankers in Sydney, eg some_gamer_dude and the Scream Man, you might want to try hooking up with them. in the meantime if you want to trade any vintage stuff, WA might be cheaper than USA...
hey mate, good to see more Aussies still collecting. there's a few other Sydney-siders around too (I've got family in Sydney and have been there many times, but not planning any upcoming trips).