Elfen Lied, Haibene Renmei, Death Note, .Hack//Sign, Rurouni Kenshin and Serial Experiments Lain.. I know they are nothing like those but they have very interesting story plots.

Anime movies - Akira, Spriggan, Howls moving castle, Princess mononoke hime, Steamboy, Sky blue and Spirited away.

If you need help finding a seed for any of these just PM me and i'll upload it somewhere and seed for you.