Art.com has some beautiful world maps. Maybe not exactly what you are looking for, but accurate, inexpensive, and up-to-date. Last time I checked most of the coffee producing countries were on it too :). We ended up just buying the big national geographic map, framing it, and marking key origins with glass pens.
Are you enjoying Barista Exchange? Is it helping you promote your business and helping you network in this great industry? Donate today to keep it free to all members. Supporters can join the "Supporters Group" with a donation. Thanks!