Kon Ichikawa Hsiao-hsien Hou Shunji Iwai Ermanno Olmi (I dunno what else by him is noteworthy, but I like what I've seen) And for the love of god, SATYAJIT RAY. The Apu Trilogy DVDs are awful (and out of print, I think) and there are tons of wonderful films not yet released: Charulata...
Well, I haven't seen LCGA, Juha or Calamari Union, but I would demand The Match Factory Girl in there. And yeah, more Mizoguchi would be awesome, although I'd prefer his more prominent films (Sansho, Oharu, Chrysanthemums) in full-blown Criterion editions.