If there's anything that helps you do business internationally (ie. based in a country other than the US), let us know. Some of the internationalization items on our roadmap:
Additional shipping carriers
Selectable currency symbol
Customizable language, cart/checkout-wide
Additional payment gateways
Update: For a few different reasons, we've pushed 2Checkout integration off. The main reason is that they require the entire checkout process to go through their system, which kind of defeats the purpose of FoxyCart's beautiful 1-page-checkout and easy template integration.
Please let us know which payment gateways you do want.