Long list, but I'll put what I can remember:
.hack//SIGN
Rurouni Kenshin
GTO
Fishigi Yugi
Slayers (all 3 series and OVAs + movies)
Cowboy Bebop
Trigun
Azumanga Daioh
Last Exile
Spirited Away
Naasica of the Valley of the Wind
Princess Mononoke
Ghost In the Shell
Ghost In the Shell: SAC season one
Vandread
Hellsing
Berserk
Dominion Tank Police
Patlabor TV
Big O (seasons 1 and 2)
Martian Successor Nadesico
Full Metal Panic (1st and Fumoffu)
FLCL
Soultaker