It doesn't seem like you're particularly interested in more commodities... just want to get away from the dollar a bit, right?
I'd go with the poster that recommended a basket of currencies for that purpose which you can customize to your liking. Take a look at USDJPY, EURUSD, AUDUSD, USDCAD, GBPUSD, USDCHF, USDSEK, and even USDMXN. Adjust your exposure to each as desired.
Or you can also go short the US Dollar Index Futures as a dollar hedge (traded on ICE). That's a predefined basket of currencies against the dollar.