Here's my anime list. if you haven't watched them, then you need to do so ASAP!

Claymore
Yosuga No Sora
Birdy The Mighty: Decode (both seasons)
School Rumble (Both Seasons)
Tears To Tiara
Ghibli studio Movies (Spirited Away, Ponyo, Howl's Moving Castle, etc...)
Kiddy Grade
Ga-Rei Zero
Chobits
Spice and Wolf (both seasons)
Eden of the East
Witch Blade
Clannad
Clannad: Afterstory
Ouran High School Host Club

wat no Naruto, One piece or Bleach and No DRAGONBALL. Those r the true must watch animes

You're missing Mahou Shoujo Madoka Magica and Higurashi no naku koro ni. ;p

No Cowboy Bebop? You should be ashamed

Also:

Samurai Champloo
Trigun
Mushishi
Gankutsuou
Berserk

OP, if you like Clannad: After Story you may like Usagi Drop.

http://myanimelist.net/anime/10162/Usagi_Drop