Puella Magi Madoka Magica, first watch. On episode 4, it's quite interesting.
Simoun, first watch. Episode 16, as slow as a show can get, but I rather enjoy this one.
Kara no Kyoukai, second watch. Finished it last week, re-watching now.
And just because I don't think I'll live very long watching heavy material all the time, Aria is a nice relaxing piece, episode 11 of the first season.