As the Rental Market tightens, rental prices will move up, so it will be in your best interest to find something as soon as possible!
Try craigslist for possible sub-lets, or you can trade labor, i.e. Live in help for someone who needs it. Also try the community boards at the CO-OP in Arcata for a good deal on a room. In any event, look right away!
Good Luck and have a Happy New Year!