I've read and enjoyed
- are you alice?
- flcl
- chobits
- bizenghast
- love celeb
- xxxholic
- flcl
And a few others
Any suggestions on mangas I should read?

You might enjoy Pandora Hearts. I haven't read too terribly much of it, but what I have read has been really good. I would suggest going to Wikipedia for a summary of it. I'm awful at summing things up.

Aww it not on mangarock :/

It may be found on mangareader...

Nightmare Inspector. It's a bit hard to find but well worth tracking down. There's only nine books in the series.

Well I'd definitely recomend DeAth Note! It is brilliantly done and I think that you'd really enjoy it.
I'd also suggest Code Geass however...the manga is terrible. I'd go with the anime but you could read the manga as well. There's something for everyone in Code Geass and it isn't too long.

Rosario+Vampire
Disgaea
Bloody Kiss (only 2 volumes but very good!)
Negima!
Spice and Wolf
Hatsune Mix