Ahhh the pains of Living in Oz and the difficulties in getting cool kit, If you are still set on buying surefire lights from a shop, and if you are ever in Melbourne or want to order from a australian shop try
www.platypusoutdoors.com.au and click on the plat-a-tac link, that wellington outdoors link above is a dealer for platypus who is the distrbutor listed on SFs site... I brought a V82 Holster from Platypus outdoors and it cost me $25 AUD, not *too* shabby, damn i should've brought more lights when i was in HK
...
Plus the Plat-A-Tac Customer service is pretty good, and it's a good place for anything remotely "tactical" in Australia....