Haibane Renmei

Description: A dream of falling from the sky...and then birth. Rakka is born from a large cocoon into the Old Home, greeted by a group of females with small wings on their backs and shining halos above their heads. Soon Rakka’s own wings grow, a halo is placed on her head and she is told that she must work in the nearby town of Grie. She soon realizes that the town and the entire world they live in are confined behind the Wall, a tall, impenetrable wall that none except the mysterious Toga are allowed to exit.
Rakka, a newly born Haibane (Angel) awakens into an unfamiliar world with only a strange dream of falling from the sky as her only memory. Alone and scared of who and what she is, she is cared for by fellow Haibane as they try and search for the meaning of their existence as well as what lies beyond their town's imprisoning walls.

Wiki: http://en.wikipedia.org/wiki/Haibane_Renmei

Youtube: Trailer

Reason: This just seems like an interesting dramatic anime to watch. The art style and dubbing look fantastic. Check out the trailer . It fits into a more adult theme like Cowboy Bebop, Gundam Wing and Trigun. I think it would be interested adding this into a schedule. Possibly a rotating one (like what we have with the Gundams) with another anime of a similar type (may I hint at Eden of the East).

Where on Schedule: Midnight Run, Toonami Afterdark

Dubbed: Yes, an English dub is available.