[Hatredcopter]

Don't forget that you still do need the four year degree, regardless of whether you want to teach English or do computer-related stuff. It's possible to get into the IT field in Japan, but its very difficult finding your first job if you're not already in the country. That's why a lot of people teach English first through JET or something like that, then they may try and seek out a job in a different field while in Japan. It's difficult because very few, if any companies, will hire anyone presently living overseas... just too much of a hassle and a risk.