lol i suppose i'll post mine too.
i think there are a couple that are the same as from above, but whatever. there's also an official adobe set (included in fontfolio 10) that has a lot of different weights.
also, considering how big japanese font sets are, i would suggest that you run down to your local tracker and pick up a copy of adobe type manager. it makes life much easier when installing and using fonts, plus keeps your computer from having to load them all into memory on boot.
DOWNLOAD PART 1: Adobe FontFolio 10 Japanese full Kanji
DOWNLOAD PART 2: Assorted Japanese full Kanji
DOWNLOAD PART 3: Assorted Japanese Kana+Alpha (no Kanji)*
Total fonts: 226
Uncompressed size: hueg
ALSO...some links to font archives:
Japanese Type Design: link archive, hundreds of links to japanese font downloads and other archives. be warned, this page takes several hours to get through. about 15% of the links are dead, but the good ones are still up.
Flop Design: studio with freeware kana/alpha fonts.
Maniackers: studio with freeware kana/alpha fonts.
more are in the index page above, lulz.
*based on the japanese keyboard kana, not Microsoft Natural IME (ie: A=ち, S=と, D=し, F=は)