I've spent many an afternoon at Liquid Planet. These folks have a wide variety of their own teas, including my favorite, Breakfast in Beijing. They make assorted pastries and even sandwiches to eat. I love that they have decent WiFi and enough tables to sit at to work. As the name suggests, they offer more than tea. They also sell coffee, cold Frappucino-like beverages, and other hot and cold drinks. Plus you can buy wine, mead, coffee, tea, handcrafted sodas, and other cool things there.
I really love Lake Missoula's tea and their tea bar. The owners are friendly and they have tea I haven't seen anywhere else. They make their own blends, too. They serve their tea at a bar where you can enjoy right there in ceramic cups or you can get to-go cups. Always a treat to visit them. They also have a cool assortment of tea sets and tea gear.