Here in Portland we have a couple of surplus electronics shops
Surplus gizmos is probably the largesthttp://www.surplusgizmos.com
Has a lot of connectors and switches and occasionally a few single cool items
Cascade surplus is on the other side of town from me and I haven't been there since they moved even further away. Somebody else will have to comment on them, before they moved I can't remember much more than old relics and lots of transformers.
I haven't seen anyone mention Hamfests we have several good ones in the pacific northwest. Next weekend is a really big one in Washington, when I say really big its really big. I usually get a couple of tables and my daughter sells stuff while I bring other peoples stuff back so my truck maintains its proper ballast. http://www.mikeandkey.org/flea.htm
And in June is another one here in Oregonhttp://www.seapac.org/
There are hamfests all over, you can look up many of them on http://www.arrl.com
These are basically flea markets for electronics and you can find all sorts of strange and wonderful stuff to take up space.
Hope someone finds these links useful