The Swan/Dolphin, next to the Boardwalk close to Epcot, have Starbucks at Pikabu's and in the lobbies--probably at the other restaurants too.
The Disney resorts and restaurants are contracted to sell Nescafe which is just awful. There are a few places to get the good stuff though: coffee bars at the Contemporary and Poly resorts, and the Kona Cafe at the Poly. There's a great coffee stand in the Italy section at Epcot. They have some frappe, mocha stuff too, both hot and cold. I'm sure there are other places as well. I just listed the places where I have been.