I am a Brit that has been living in Portland for about 9 years. If you swing by Portland come say hello, I will gladly take you for a day out in the city - just make sure you are hungry and thirsty!
My blog is crap, but it is all Oregon, so check it out.
If you are going coastal, I will definitely recommend Pacific City and Lincoln City (eat at Tidal Raves in Depoe Bay). There is an amazing beach at Neskowin Bay, that is where to go for sunset
Hood River is a must, such a fun town, check out the air museum, Double Mountain brewery. Go for hikes at Mt hood.
Bend is just blowing up right now, definitely head there and stop at Smith Rock while you are at it.
Crater Lake is just crazy beautiful... It should be on peoples bucket list.
The gorge is just amazing. We spend a lot of time there. Maryhill on the WA side has a full size replica of Stone henge!
Wine, beer and hard cider being made everywhere. Food to die for. Prices that won't kill you. The friendliest people you will ever meet.
Oh it just goes on and on!