You can visit my friends' Thai import store in Pioneer Square:

http://www.lannaimports.com/web/index.html

The underground tour stops in front of the store, so it will be easy to visit if you go on the tour. There is also a great martini bar across the street at 88 Yesler, I think it's called Bill's Bar but I am not 100% sure about the name.

Seattle is one fine city. I can't wait to go back.