Zombie Holocaust was quite fun and I agree with Nicklord1 that HBTC is a classic.
@Bloodlord, you can get Attack Girls Swim Team on Amazon. I highly recommend you check it out.

Zombie Holocaust is brutal. i like the atmosphere in that flick

thanks. it will most definately be added to my collection. I try to get my hands on every zombie flick that i can find. so i appreciate the help.

zombie
 

night of the living dead:p

In no particular order:

-Zombi2
-Night.O.t.l.d by Savini
-Let Sleeping Corpses Lie
-Shaun of the Dead
-Burial Ground

That's a tough one...

Night of the Living Dead (Black and White)
Dawn of the Dead (Original)
Cemetery Man
Day of the Dead
Bio-Zombie

Then of course there is Fido, Shaun of the Dead, 28 Days Later, Evil Dead series and Return of the Living Dead 2.

I never saw "Bio Zombie" I'll surely have to check it out

i believe biozombie is shot in hong kong and its quite funny and entertaining , its nice to see how another culture takes on zombie movies , as the genre is choked with american and various european adaptations on the idea.