One of the best places to buy things is R/C Champ - If they stock it, it will be just about guaranteed it will be cheaper than anywhere else.
Check out this thread Price
, ask if they have it and at what price and "Masa" will tell you. Masa is the nicest guy to deal with, ultimate service. Not to mention the speed, it usually takes 3 days to receive an order from them.
As to buying things from Australia, the other day I walked into a LHS and noticed they had some Much More Motor coolers (Peltier type) and the price tag was $158 AUD, and that was supposed to be a good deal. I checked out the price at R/C Champ and their price is about $85 AUD. Now I agree you should support your LHS, but when the differences are like that you won't see me buying things from the LHS