Have been to almost all the place mentioned above (except I haven't wind surfed on the Columbia. I'm too old to do that now, but will probably be out to the tri-cities area in a few months (working for Battelle Northwest).

Climbed Mt. Adams, climbed on Mt. Rainier, climbed several in the Olympics (my backyard) and hiked and did rock climbing practice in North Cascades (before and after 'park' status). Further south, (in Oregon) I got my Tillamook Polo Club tee shirt (they ride Holsteins). Be sure to visit the Oregon dunes. Pick a clear day to visit Crater Lake. The first time I went there the fog was so bad I couldn't see the lake, but on a clear day you can see past Klamath Lake to California (but need binoculars to see Mt. Shasta). Also, don't miss the Rogue River area or the beautiful Wallowa Valley. I've forgotten exactly where the obsidian mountain is, not too far from the fossil beds.