I've been living in San Jose (the Almaden Valley area) for the past five years or so, but moved up to Foster City a couple weeks ago. What I'm looking for around here is the best coffee bar type place I can find: great coffee, and a good atmosphere for reading, conversation, or laptop work. (Free wifi is a plus.) The place I used to go was Barefoot Coffee in Santa Clara, but I'm looking for a place that's, well, a bit closer than they are now, even though I may end up dropping by Barefoot to pick up whole beans on occasion.
Foster City and San Mateo are ideal, of course, although I could end up as far afield as Millbrae or Redwood City for some place that's really great.