In Seattle we love our Food and Drinks!
The Bite of Seattle is our big food festival. It's held at Seattle Center every year. It's a great way to try a variety of foods from some of Seattle's fine and casual restaurants.
http://www.biteofseattle.com/home/default.aspx
In September, the neighborhood of Fremont celebrates Oktoberfest. At the time of this posting, their site still has information for 2007. But it will have the info for 2008 closer to the date!
http://www.fremontoktoberfest.com/
Throughout the summer months neighborhoods in Seattle will hold their own community festivals. You can choose from a couple of festivals any given weekend. And every festival features food booths and a beer/wine garden. You can get some great souveniers by local artists at craft booths. And hear live music from local bands. If you find yourself in Seattle during the summer, be sure to check out a festival. It's a great way to get the Seattle experience with the locals.
Here's a list of festivals from the City of Seattle. http://www.seattle.gov/html/VISITOR/festival.htm
Some of my favorites for eating at are the Ballard Seafood Festival, Bellevue Arts Museum ArtsFair, Bite of Seattle, Bumbershoot (huge music festival), Capitol Hill Block Party, Fremont Fair and West Seattle Summer Fest.