Cafe 976 is a redesigned yellow house with a sunny little garden outside that has a good number of people lunching, chatting, meeting with friends or studying at any time of the day. The food is pretty good too, I like the spicy eggplant sandwich, the portabella mushroom sandwich and the salads. The inside is decorated with changing local art and there are a lot of single tables usually taken by the studying/reading crowd.
Note that the order line gets long on weekend afternoons, and the cafe closes at 11pm every night. For the students, there's a lot of studying going on inside, but too few outlets and only paid wireless internet. If your work is very computer/internet intensive, this might not be the place for you.