Hey MBA.
If you do a search there are numerous posts on this topic. I am an Aussie flying in the USA. Unfortunatly you cannot do a straight swap of your license. You will have to undergo some training to obtain an FAA CPL.
For all those interested check out this link.. esp Subpart F
http://ecfr.gpoaccess.gov/cgi/t/text....1.1.2&idno=14
Hope this helps
Cheers 0tter1