jrsl,
Someone gave me this exercise and it was very eye-opening. Fold a piece of paper to make 4 sections. In the upper left write "Benefits of staying the same", upper right write "Benefits of changing", in the lower left write "Drawbacks of staying the same", and in lower right "Drawbacks of changing". Brainstorm and make a list of as many things as you can put in each section. I was surprised how long my "Benefits of change" and "Drawbacks of staying the same" were.
Not that I've made huge changes yet, but at least I'm getting the ball rolling. You can use this exercise with any decision you have to make and just change the categories to fit the decision. I'm a pretty visual learner, and something about having it on paper helps. Probably why journaling is also effective for me.