For many years teaching English has been a great way for westerners to spend time in Japan. The terms and pay can be very good if you give private lessons in the corporate environment and they can be more harsh if you are with a language school. Anyway still a great opportunity for an adventurous time in Japan.
But listen up now Sensei-sama! North Korea is looking for English teachers! Will Pyong Yang be as fun as Tokyo? They babes and the beer? Unfortunately only open for British subjects, but that may change. I am eagerly waiting to read the blog of the first ELT in El Norte!