I posted some information a few weeks ago about where to go and what to look for in a piano. In the meantime, Peggy from Classic Pianos called. She told me if any of my students come in looking for a piano, and mention my name, she will give them a discount!
Just wanted to pass that on to you. Classic Pianos is at 3003 SE Milwaukie Ave
(off of 12th and Powell. Next door to Classic Pianos is Portland Music Company, which is a fun place to go and browse for sheet music. They are very helpful and there is even a little piano in the back room if you want to try your music before you buy! :)