now, i don't think the dollar will stay high for too long, unless drastic measures are taken by the US govt to cut spending, not print money, and create industry within the US).
another thing to watch out for is china. today they loosened licensing requirements for media (financial related data): http://www.nytimes.com/2008/11/14/business/media/14media.htm...
what this means is that they are trying to pull more investments and spending into their own country; this could hurt the dollar if they are successful. interesting thing to notice is that the dollar never really regained when compared to the yuan: http://finance.google.com/finance?q=usdcny