Have a look at the current pricing for VMware Workstation 7.1
If you pay in US$, they want $189.00
Currently AU$1.00 buys US$1.03 according to the TV, making that approximately AU$183.00
Click on the pull down option on th VMware store to convert the pricing to AU$, it becomes AU$277.00 - a markup of AU$94.00 or approximately 50%.
I've rung and asked them why the difference - and got some bulls**t about there being annual price adjustments based on the current currency conversion. The only problem is the last time that AU$ was low enough for that was back in the 1980's.
US companies regularly rip off Australians.