"8 Legged Freaks" was the fun, exciting version of Arachnophbia. Loved it
On Zombie movies; I've seen and loved (some exceptions...);
Night of the Living Dead
Dawn of the Dead (and recent remake)
Day of the Dead
Return of the Living Dead (camp, certainly)
Land of the Dead
Evil Dead
Evil Dead II
Evil Dead III: Army of Darkness
Resident Evil
Resident Evil II
Resident Evil III: Extinction
Night of the Creeps
Night of the Comet
Slither (technically NOT living dead, but close enough)
28 Weeks Later
28 Months Later
Shaun of the Dead
Brain Dead (known as 'Dead Alive' in the US)
Oh, and if you're into books, read 'World War Z'. It's the business.