How about just getting a pound from your local Starbucks? That's what I do. Nothing fancy, but it's fine. I like their darker roasts.

Just noticed you're in Chicago. Ignore my Starbucks thought and run, do not walk, to either Intelligentsia (on Broadway at about Wellington, downtown, or in the Merchandise Mart) or Metropolis (on I think Granville by Sheridan). Metropolis roasts its beans on site, and Intelligentsia is similarly awesome. Another excellent option is Peet's Coffee on North and Sheffield (in the strip mall). Peets has a good selection and they will make you a taste of any kind you want.

All three are exclusively fair trade (or more).

http://www.intelligentsiacoffee.com/
http://www.metropoliscoffee.com/
http://www.peets.com