Ask HN: Solution for Multi Currency Webstore?

Using woocommerce to run a simple webstore... http://wyldsson.com/shop/ Issue is that I now have customers in the US, EU and UK... all of whom use different currencies. They of course would like to see the products displayed in their home currency, and would also like to complete the transaction in their home currencies. Woocommerce only supports 1 currency at a time unfortunately. This must be a problem faced multiple times in the past... surely there must be a simple solution here? Any thoughts or ideas would be really welcomed!