Well, i just recived a PM asking what schools are good here. There are a few but I will let you know the one I like, and went to.
JAL ACADEMY Global Training>For Corporate
If you are looking to make an impact in japan and want to learn the right way to talk in all situations, this is the school. the price is a tad moe expensive, but you get a very good education.
As far as the 18 and under in this forum, i have no clue on schools or anything in that area.
Others currently living in Japan are more then welcome to post their known spots.
TF