Through a series of unexpected last-minute events, the group I'm in has found ourselves needing one less room than expected. Rather than deal with hotel cancellation fees, the man with the reservations has elected to offer this extra room on the forums.
The reservation is in the Inn at the Convention Center. It's across the street from this year's con, and should be pretty convenient.
For more details, including room price, contact David at 971-277-3514. I am not David - I've just volunteered to be the forum messenger.
Edit:
To clarify, the reservation is 3 nights: check-in Thursday (day 0), check-out Sunday (day 3)