tengen toppa gurren lagan (check this one out)

Code_Geass_Lelouch_of_the_Rebellion_R

xxxholic kei (dont like it but you might)

genshiken 2

tokyo tribes 2

wangan midnight

school days

i could go on forever but is there a certain genre you are looking for?

do you like seinen at all?

as for manga:

air gear, gantz, berserk, initial d vol 33 and later (after anime ends), worst (you should really check this out) uncivilized planet, hello baby (one-shot) wangan midnight