GLD is an ETF that holds gold. If you think the dollar will go down, can’t you invest in the dollar index ETF? A quick google search yielded Hedging Against a Dollar Dive. Roger Nusbaum recommends Rydex Euro Currency Trust FXE and several others (be careful with Profunds products, as outatthepeak and I had some bad experience – use piggington search for the whole story). Peter Schiff recommends the Merck Hard Currency Fund (MERKX).
Today I read that Bill Gross predicts the dollar will fall at least 5% next year, and that the U.S. housing bubble will take 1-2 years to play out.
Marketwatch reports assets of pure currency open-end mutual-funds and ETFs doubled to $1.4 billion in the past 6 months, and most of the new money comes from RETAIL, not institutional investors. I suppose everyday investors like us are getting nervous about all the media news about foreign diversification out of the US dollar.