I almost have my JET application done as well. We have decided on our three choices of prefectures to live in (Tochigi, Ibaraki, and Chiba). We wanted to be close enough to Tokyo to get a Train in on a weekend, but still be far enough away to avoid the clutter of the city.
I am still looking for a job. I send out about 30 resumes a day, but to no avail. I usually get 4-5 call backs a week, usually from a recruiter, and those usually don't go anywhere. I'm getting my spirits up though, and I am determined to continue looking, trying new methods, etc. Until I get that one "yes" I need!
If anyone has a good job hunting method that worked for them really well, let me know. I never turn down advice!