An american version of DE, produced by the parent company, Sara Lee, is available through coffee shops and restaurants in and around Chicago and the US. Note: the blends are quite different. The US DE and the European DE are similar in logo and name only; the US version was created for the US market. Sara Lee does distribute the European coffee in brick packs throughout the US, but it is in very limited quantities.
If you had it at Nevin's, you probably had the US version. I don't believe that it is available for purchase at retail (yet) unless you can convince Nevin's to sell you some. It is a foodservice-only brand.
The Senseo Coffee maker uses pods that are filled with the European roasts - I believe the coffee is produced in Belgium. Since many supermarkets and discounters sell Senseo pods, it may be the easiest way to enjoy DE coffee at home without going to all ends of the earth.
A quick search yielded a few online stores that sell the European-produced brick packs. Here's a
link to one site that seems to have it in inventory.
I didn't find the US-produced DE available for retail purchase anywhere. Since the US version is a relatively new product (my understanding is that they have been selling it since late spring) it will be awhile before foodservice product is diverted to retail channels.
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