Bill,
I agree - take the 4.5 and run. The so called "experts" have been wrong so many times that I would not bank my future on them. In the current environment I doubt that anyone can predict with any certainty what will happen. I remember in the 1970s the interest rates for home mortgages were at the 18-21% level. People jumped at the chance to get a 12% rate. If you do the calculations the difference between 3 and 4 percent on a monthly basis is hardly worth the worry.

Just my opinion.

Hammer