Here, via the Wall Street Journal, is a chart that features the latest (March 2012) Case-Shiller home value numbers. In this case, I sorted them by the March percentage change.
Portland is still seeing a marked decrease in home values, but overall there is some hope for brighter days ahead. Apparently there is a smaller mix of distressed sales in these data and the home building data recently have been trending up.
Unless there is a collapse in Europe (which is a distinct possibility) I expect the summer and fall to go better for Portland.