It's important to consider what mortgage rates are doing. Since mid-2004, the Federal Reserve has raised interest rates several times and is expected to keep raising rates in the near future. This means that if you have an adjustable rate mortgage (ARM), it may adjust to a rate that's higher than a fixed-rate mortgage . Now might be a good time to consider refinancing to a fixed-rate loan.

However, you must also consider the amount of time you plan on being in your home. If you're only going to be in your home for a few more years, it may make sense not to refinance out of your ARM. If you're going to be in your home longer than seven years, it might be a smart move to refinance to a fixed-rate mortgage.