Well, I'll tell ya.  Whether or not Bush's tax cut is the result of the "improving" economy has yet to be seen.  I personally think that people are just starting to get confident again after the 9/11 attacks and are figuring out that the "sky" isn't falling after all.
I think the big indicator of the health of the economy will be this coming weekend after Thanksgiving.  If people go out and spend like gangbusters, I wouldn't be surprised to see the interest rates go up some.  
I locked in my 30 year morgage a couple of days ago on a new construction (my first house 

) at a whopping 5.8%.  I'm all for interest rates going up now.  My money market is making a whopping .65% 

  It was a 7% a couple of years ago when I got into it.