If you're a coffee fan, get yourself to the Columbia Heights Food Market at 14th and Oak NW -- they have a display with lots of Ethiopian and other coffee, much of which it looks like it just came direct from the country. They also have Mayorga, a local roaster, and others.
The market, if you haven't been, is a pretty cool spot -- it has a nice selection of international food and produce; I got some tasty avocados there the other day. The folks are friendly too. Give it a look.