For most of us, buying a house is the most important financial decision of our lives, and thee are lots of people who can help you. But who helps us with the emotional side of the decision? Many of us walk around with a picture of the dream house we'd really like to live in. Then when we go out looking for a house, we'll measure everything we see up against that picture -- whether it's realistic or not. In this area we have little to go on -- or measure -- other than our feelings.