Took the bar exam in July 2013 at the Santa Clara Convention Center. At that location, as mentioned above, you share a long, conference-style wooden table with one other person. Plenty of room to spread your papers/computer out. You are assigned a seat. Expect lots of waiting/listening to instructions. Depending on how large your testing location is, locate the water station closest to you so that if you get thirsty in the middle of the test, you won't be wandering and wasting time. I can't remember if I brought a mouse, nor can I remember if I brought a bookbag for my computer. From what I remember, they allow you to leave your bookbag outside of the testing room, and they have some administrator watching all the bags. And you leave your computer there during the lunch break. Scope out the test location a day before, just to get comfortable.