You could try the digidirect store in Sydney. I believe they have the best prices in Australia on Pentax EPs; just beware that if you order online you might have to wait a long time because the items on offer at their online store are not necessarily in stock. (I ordered a couple of XFs 3 weeks ago. The 12mm is ready to collect at the Melbourne store but the 8.5mm still has not arrived.)
You were probably after second hand but these EPs command high prices anyway so you won't save much more than 25% over brand new.
Thanks Steve for the advice but Barry at KK are still cheaper than them on the XW's posted from Japan ,you did take the cheaper route with your XF's though,
