One of my regular restaurant I go to for lunch is Fuji Sushi. They recently remodeled it and the place is very clean looking with a nice atmosphere. The service is always good when I go here, but the wait can be a pain. I generally go there by 11:30 to avoid the lunch rush.
I don't usually go there for sushi, since I don't think their sushi is that great. However, their bento boxes are a great deal! You get a choice of two dishes with your bento. I normally get the teriyaki salmon, saba, or chicken teriyaki. The meal is also accompanied with a bowl of miso, rice, salad, and two pieces of California rolls, all for only $7.95!
I highly recommend this place if you're ever in the Internatioanl District and is craving for bento box for lunch! www.fujisushi.net.