Long-long-long- run - Aussie dollar. If there is a global financial meltdown within the next 50 years - gold will probably be the currency of choice for wealth protection. Goodnight Asia, Au revoir Euro, aste la vista USD. The Aussie is the currency that most closely mimics the price of gold (we have shit loads of gold here), we don't have restless natives (unlike ZAR) and we have heaps of other "depression proof" natural resources (unlike CHF which doesn't back it's currency with gold much these days). Thats assuming you want to sit it out Buffet style, otherwise, the other suggestions made are good ones so far.