I could have swore I responded to you several days ago and mentioned that there are some great aikikai dojo up there and told you about the ki dojo as well.... but obviously my post isn't here...
Anyway, I can't attest to the ki dojo, but I can say that most of the aikikai dojo's up there aren't bad at all. Our dojo goes to Multnomah and Portland Aikikai more frequently.
I just worked with Aki for the first time this weekend at a seminar in Eugene and he is a very kind guy. Really patient and willing to slow things down and break it down so you can figure it out.
Haven't personally trained with any of these, but I hear Yoko is amazing (she only comes back to the US a few times a year), but I hear the other instructors are nice as well.
Best of luck. You have a decent choice of dojo's to pick from.