Back to Ball Square. Or is it Cubic Circle ? See online menu for prices; map is right here.
http://www.ballsquarecafe.com/contacts_directions.html. By 9am there is a line outside - but under the awning there are space heaters. If you are in line definitely go inside and get a mug of coffee while you wait; the coffee (and tea - some great choices) is self-service, get what you want the way you like it. Friendly staff, no pressure to move along even if the line outside is long (but I have not brought along a Sunday paper either). Also a great opportunity to get a cake or cookes at Lyndell's (one block away).
If you go late in the day, parking is always a challenge in the busy area. Right next door is Sound Bites, great food as well. Reminds me of the business case study of two ice cream vendors who both decide to set up shop in the middle of the beach because both want to reach the largest audience rather than set up at 1/3 points, which might make it more convenient for consumers.