I looked up the 10 year treasury yields but realized that I have no idea how this relates to actual 30-year fixed rate mortgages. Are they actualy linked? If so, how am I going to know in advance if they are going to go up or down? Or are you just saying to watch out in case they start to move quickly in one direction or another?

Thanks,
yellow8

Now one thing you need to think about as well… because of your relatively quick timeframe, a huge consequence to you will be the 10 year treasury yield.