I've been going to Kazuki Japanese Restaurant
638 Westwood Avenue in River Vale, NJ for the past month. It's BYOB, and they have an AYCE for $21.95. The quality of the sushi is way better then say Minado, not the best, but decent. When you are in need of one of those, I want a lot of sushi but don't want to spend as much as I feel I could eat fixes, this is a good place to go.
They have a good variety of sushi, rolls, and hand rolls. The service is friendly, but sometimes a bit slow.