There were a few big releases in Oregon this last weekend including Pelican's Mother of All Storms and Hair of the Dog Matt, so if he was a dedicated beer geek he could have done a big road trip for you.
Dissident by Deschutes is fantastic and should be making it to Seattle very shortly. It will probably sell out pretty quickly so he might need to watch for it and snag it quickly. Jubelale is a good winter beer by Deschutes and is easy to find.
We also get Russian River beers, and I've seen Temptation at Whole Foods recently.
If growlers are an option, he could visit Black Raven in Redmond and pick up one of their limited release beers.
Malt and Vine in Redmond has a good representation of their inventory on their website, so you could take a look at that and see if there is something that interests you:http://www.maltandvine.com/cgi-bin/commerce.cgi?search=action&category=1010&keywords=all