Q's about language trip/school in Japan

[Hantimilon]

I'm 26 yrs and living in Norway. Always been intrested in everything about Japan. The culture, their ways of living and the language. Planned a trip there April this yr. But had to cancel it due to the Tsunami. My lifelong dream got scattered to say the least.
Now lately i've been looking into alot of language school, and really want to take a trip for about a years time.

But the more i search the web, the more questions i have.

Anyone taken any language school or similar in Japan?? Pref Tokyo.
Or got information about anything similar at all

As far as i can tell, the prices seems to be about 800.000 yen/yr for school. + around 80.000 yen/month for a room.

Please contact me if you have information, or intrested in the same.