At least you have Paul in Taipei...
There's a store in Hsinchu (in 3 locations, easiest to find is the one in the FE21 department store) named "Orange Market". They sell all kind of organic products, not as overpriced as Jasons. I usually go there for the bread which they claim is made by their "German baker". Its not sweet and pretty dry.
Some bread variations are there with nuts and cheese inside.
They also sell some cheese but not a large variety, lots of stuff is imported from Europe.
I'm in discussion with the store laoban to have more imported (now that the Euro is cheaper compared to the Taiwan dollar).
They have a website too (in zhong wen):
Please don't rob all of my bread now.
There's already someone who started stealing all my pickles in Zhubei Carrefour's International Food Section.