6 months in to enjoying better coffee I have tried a few roasters mostly in New England and have found the following three to be my favorites so far:
George Howell Coffee
Temple Coffee (California)
Flight Coffee (New Hampshire formerly CQ Coffee)
Of course not all the coffees from these roasters have knocked me out but these three have given me more truly great coffees!
Honorable mention to Mike Shea's Roasters in Massachusetts. A very solid coffee that is a bit cheaper if my monthly coffee budget has gone over.
I have also narrowed down that I really really like coffees from Ethiopia, Guatemala, Nicaragua and Colombia. I had one great Kenyan coffee from George Howell but others have not been as enticing. I had one AWESOME Rwandan coffee from Flight coffee but need to try more coffees from Rwanda.
Still need to explore coffees from Indonesia. (did have one great coffee from West Java roasted by Flight coffee!)
I also know I want to try Intelligentsia, Red Bird and Klatch coffee roasters.