I'm doing Biology right now in university, and what I have in mind is to apply for the Monbukagakusho scholarship to do my post-grad studies in Japan. I think it's a good chance to know the research environment in Japan since I heard the Japanese have a strict hierachy system in the lab. This is if you intend to go into research.
I learned a LONG time ago that I didn't want to be caught up in Japanese academia -- the elderly respected prof gets all the rep and cred for the work of his underlings in the lab. Why do the underlings not complain? Because some day THEY will get all the rep and cred from the work THEIR underlings do.