Good Italian Delis in Seattle Area
I agree with JayDK that a combination of DeLaurenti, PFI and Salumi should net you a great majority of the products you might find at a good Italian deli in the Northeast U.S.
None of these three places will provide the ambiance and "one-stop shopping" that a back-east deli would. And none of these places will serve you an Italian sub/hoagie either*. [Sigh.]
*Salumi will of course serve you other kinds of delicious sandwiches.
I bet you hate Seattle bagels too!
For Italian delis it takes a little perseverance and travel.
Here's what I like...
1. Delaurentis in the Pike Place Market.
2. PFI http://www.bigjohnspfiseattle.com/ near Uwajimaya for groceries.
3. Salumi for salumi.
4. Procopio for gelato. http://procopiogelateria.com/
Outside of Vancouver BC that might be the best you can do is go to various places for their specialties.
I hope you find one I haven't heard of.