Fast and free wireless, plenty of electricity everywhere, I like Bruegger's. You do have to arrive early for the best seats. The place is pretty popular for the "out-of-the-office" types, sitting with their laptops at tables for hours at a time.
The only two things that I would say are negatives is that the place tends to get very loud with a lot of background noise from neighboring tables. And the coffee refills aren't free.
Great bagel flavors, including several that they don't have at Panera. I like the Pumpernickel and the Jalapeno. Both are excellent. These are "real" bagels, unlike the stuff you might pick up a supermarket. They're made the right way, even if they aren't as good as New York. (Ha ha.)
They have a "deal" for a bottomless coffee mug. Only $129 for the year. So if you stop by Bruegger's often enough (at least twice a week), it might work out for you. I was hoping for something way cheaper!