Looks like most of what I was gonna list is covered, so I'll add
A:
Toradora
Nyan Koi[though needs 2nd season still
]
C:
Canaan
E:
Sora no Manimani
K-ON Maybe?
I'll seconding to these:
Ghost in the Shell 1st and 2nd Gig
Samurai Champloo
Trigun
Twelve Kingdoms