I think if I knew how the exchange rates were going to go in the next few months I would be booking my holiday with a first class flight and a 5 star hotel. Money markets are very difficult to predict. Just think it was not that long ago that the rate was 1.64 then it dropped to 1.51 and now its up to 1.65. I would definately recommend buying some now as really 1.65 is not bad at all. If you wait you may get a few cents more but then again it may drop. Its always a gamble but if the indications are right, waiting a few weeks may reap some good rewards. Imagine 1.75!! Now that would be nice!!Good luck