Here i go:
Banner of The Stars I, II, III
Crest of th Stars
xxxHolic
FSN
Utawarerumono (which mean in japanese the thing that is able to sing o.O )
Gurren Laggen
Elfen Lied
Hack Sign
hack Sign Twilight
Big O -- Old school :]
Dragon Ball
Tenchi Muyo
Tenchi Universe
Guu
GTO
Dual
happy Lesson
Slayer's Movies
Inuyasha
Evangelion + the movie
Azumanga Diaoh
Genshiken
Shakugan no Shana
Iriya no sora UFO no Natsu
Develsray
Blue Sub 6
Gundam Wing
Gundam Seed
Gundam MS Team 7
G Gundam
heroic age
Higurashi
Higurashi 2
Zero no Tsukaima
Zero no Tsukami 2 (which isn't as good as the first >.>)
Urusei Yatsura (1970's ftw )
Coybow Beebop
Here is Greenwood (oldskool)
ROD the OVA
FLCL
Futakoi
Futakoi Alternative
Lucky Star
Nadesico
Rozen Maiden
Zoids Zero
Gatekeepers
Steel Angel Kurami
Lodoss Tou Senki
Haruhi
I My Me Strawberry Eggs
Today in Class 5-2
Dokoro Chan
Soul Link
Hand Maid May
Maburaho
Outlaw Star
S-Cry-ed
Vandread
Love Hina
BGC Tokyo
Sola
El Hazard MG & AW
Wolfs Rain
Last Exile
Tsukuyomi Moon Phase
Code Geas
Grenadeir
Bakuretsu Tenshi
Gad Guard
geneshaft
Black Lagoon
Umisho
Disgaea
Princess Resurection
yumeria
Fruits Basket
UFO Princess Warukure I, II, III
Galaxy Angels Season 1, haven't dared watch the others yet :P
Bleach (only till soul arc... then i read the manga)
Sumomomo momomomo
Inukami
Chobits
Golden Boy
He is my Master
Stratos 4
Dai Mahou Touge
Eiken (badddd anime)
Seto no Hanayome (very funny)
Nagasarete Airantou
Currently Watching:
Moyashimon
Goushishoysama Nimoyoria Kun
Shakugan no Shana 2
and I have seen many more, but don't rember atm >.>
this is also not including many movies and ova's i've seen.