Greetings!
I have created some very detailed topographic maps for the Portland, OR metro area, including portions of Vancouver, WA that are for use with Garmin GPS units. These maps show land contours derived from the USGS 1:24k (large scale) quads, and provide city streets, parks, and some trails using data from the Portland cGIS and Metro region databases circa early 2005, augmented by USGS data as needed.
These maps are free for you to download, use and even redistribute as you see fit. Get them from my Oregon Topo Map home, where you can also see a few screen shots and coverage information. They would be of interest, and potentially of value, to anyone living in or traveling to the Portland area.
Long term, I'd like to provide maps for more than just the Portland area, though that will depend on interest from the general user community, availability of quality data and, of course, my free time.
Enjoy!
-SS