GOTHIC THEMED ANIME RECOMMENDATIONS?

Death Note is quite a dark and gloomy anime.

You should try Rozen Maiden (currently have three season and still on-going) It's definitely gothic themed and has awesome story line.

Jun Sakurada is a Junior High School student who refuses to go to school after being traumatized by an embarrassing experience there. He has taken to locking himself in his room, never leaving the house, and spends the day ordering goods online and returning them before the date in which he has to pay. His older sister, Nori Sakurada, does everything she can to brighten Jun's dreary existence, but is unable to change his situation.
One day, Jun receives a letter claiming he has won a prize. The letter asks him to choose "Yes" or "No". It states that after he has made his decision, he must place the letter in the drawer of his desk, and Holie will take it to the spirit world. Despite his skepticism, he follows these instructions, and discovers soon after that the envelope has vanished. Moments later, he realizes that a richly detailed wood case has materialized within his room. The box contains a strange realistic doll dressed in French aristocratic (synonymous with Gothic Lolita) attire. Jun examines the doll from every angle before seeing the key and winding up the doll. The doll creaks, stands up on its own, then proceeds to slap him for handling her as crudely as he had. She introduces herself as, "…Shinku, the fifth doll of the Rozen Maiden."
Shinku is a doll from the unique "Rozen Maiden" collection, and before Jun can fully comprehend the weight of his new situation, a stuffed clown (bear in the manga) plush doll attacks. Shinku promises that she will save Jun's life, but only if he will vow to serve her. Thus, Jun becomes entrusted with the responsibility of protecting Shinku's "Rosa Mystica" whilst she is engaged in a centuries old fight with the other Rozen Maiden dolls for the title of "Alice."

You can see the pic of the Rozen Maiden dolls here.
http://img509.imageshack.us/i/rozenmaidenboxqs4.png/#q=rozen maiden
The pic shows Hina Ichigo (the 6th Rozen Maiden), Suigintou (the 1st Rozen Maiden, Suiseiseki (the 3rd Rozen Maiden), Shinku (the 5th Rozen Maiden; you can see her pic in my avatar too), and Souseiseki (the 4th Rozen Maiden)

Toodles!

Old world style gothic;

Le Portrait de Petit Cossette http://myanimelist.net/anime/514/Le_Portrait_de_Petit_Cossette

Gankutsuou: The Count of Monte Cristo http://myanimelist.net/anime/239/Gankutsuou

Le Chevalier D'Eon http://myanimelist.net/anime/1013/Le_Chevalier_DEon

And there's a number of vampire ones like;
Tsukuyomi -MOON PHASE-
Hitsuji no Uta
Vampire Princess Miyu
and others that have already been mentioned

To a degree Petshop of Horrors may be your sort of thing http://myanimelist.net/anime/326/Petshop_of_Horrors

And perhaps Tactics http://myanimelist.net/anime/173/tactics

X /TV http://myanimelist.net/anime/156/X

Shigofumi http://myanimelist.net/anime/3420/Shigofumi

Shinigami No Ballad http://myanimelist.net/anime/789/Shinigami_no_Ballad

Darker than BLACK http://myanimelist.net/anime/2025/Darker_than_BLACK_-_Kuro_no_Keiyakusha