So any suggestions?

Some series I have already watched/read:

One piece

Berserk

Rurourni Kenshin

Death Note

Cowboy Bebop

Black Lagoon

Devil May Cry

Naruto

Code Geass

Gurren Lagan

Hellsing

Wolfs Cry

Dragon Ball

D.Gray man

Bleach (sucks)

I like more manga but anime goes as well.

If you like Berserk I'd suggest you read Claymore. It's in a similar vein, even if it isn't as good.

If you like your manga a bit more grown up I'd suggest Vagabond. Its themes are definitely not the juvenile stuff that runs through most of the things you read, but the violence and completely badass characters makes it a good read. Warning for slow pacing though.

Then there's just no way I can read a manga thread without recommending Yotsubato! and Chi's sweet home (where my avatar comes from). Yotsubato! is about the funniest thing I've ever read, all categories, and Chi's sweet home is adorable and cute beyond words. Not your standard shonen manga though, so you might be a bit put off by that.

O ye forgot Claymore and Vagabond on the list but I have read it and still wait for new releases..

O ye this is Yotsubato...I was actually gonna ask what is this anime since I have seen it in many Amw Hells.

You seriously should give the manga a shot. Preferably the english translation by ADV (the publisher) if english is your language of choice for reading manga. It's astonishingly good.

Trigun, but read the manga. The anime is awesome, but the manga explores everything and extends far past the anime.

I'm a complete anime newb but I enjoyed Trinity Blood and Hellsing. Love me some vampires =P

Edit: Oh and Full Metal Alchemist wasn't bad either.

read "shaman king" is pretty good so far.

oh. full metal alchemist is freaking amazing. watch that. and shaman king was freaking epic!. i still havent watch the last episodes.

hunter*hunter. its my favourite manga/anime

eureka seven, xxxholic, and blood + and maybe outlaw star and inuyasha.