At the moment I'm trialling a currency converter in the Godzone Store. This will give the option to display the price in the default New Zealand dollars, US dollars, or Euros. Note that the Checkout will revert to New Zealand dollars, as all orders are still processed in New Zealand dollars.
This means that the converted prices are a guide only, and may not match the actual price charged by Paypal. It should be close though -- a few cents difference -- but if anyone has problems with this, please let me know.
This is how the price will display on the product page:
...and this is how it will display in the Cart -- note that the products show an approximate conversion, this time in US$, but the Subtotal is always NZ$, and this is what will be charged by Paypal.