Language course in Tokyo

Hello,
I'm currently looking for a language course in Tokyo, and it must last 4 weeks.
For accommodation I already know a family over there, who I can stay with. So the only thing I really need is a language school.
I'm 17 years old, a beginner and I'd prefer the school to be near Gotanda.

Any links or advice are very welcome!

Many language schools offer (1) 1-year, (2) 2-year, or (3) 4-week or 8-week intensive courses during summer. Something like this:

http://www.naganuma-school.or.jp/school_2/en/courses/intensi...

I know a few people who attended this school's long-term course and are now quite fluent speakers of Japanese. In terms of location, Shibuya is only a few stations from Gotanda.

Hello,
In July 2009 I've planned to participate in a Japanese language course for 4 weeks. I've been searching around for some schools, and I've found one called 'Inter-cultural Institute of Tokyo'.
Now I just want to know - does anybody know this school? If so, is it any good?

Also, do you have any tips concerning a language course in Japan? Like, what is wise to bring with you etc.?

one thing to note is that while studying in Tokyo might be considered fun from the sightseeing perspective, I preferred doing it bit farther off - cheaper, easier to focus on studies, and more nature.

To be more precise, I recommend Yamasa ( http://www.yamasa.org ) in Okazaki near Nagoya. Not that my studies in Tokyo were that bad either, but just living and the rest were much more expensive..