Adoroma in the U.S. have the Pentax XW5, 7 & 10mm on sale at the moment for only $279, plus shipping ($60 to Qld)- that comes in at $330. It's the cheapest I've seen them so I couldn't resist jumping in and adding a 5mm to my XW collection.
OPT are still selling them for $360 plus shipping.
http://www.adorama.com/searchsite/de...info=pentax+xw