My current favourites are short USDJPY and long AUDUSD. Always been hesitant of former due to BOJ intervention in past really screwing things up but this seems to be in the past now. As for latter it looks like a nice break and certainly good risk/reward.
At the end of the day I think money will probably be made by being short the dollar against just about any other major. It is a case of finding the best pair.
If you consider Gold a currency then this is on thread.
One interesting relationship is the spread Gold/Crude Oil it is at all time low. Buy Gold/Sell Crude Oil could be interesting, just not sure what would be the ratio.