Grave Encounters 2, Manhunter and REC 3 were just added.
Other good ones: The Burning, Bay of Blood, Black Sunday, Bedevilled, Lisa and the Devil, Schizo, The Guard Post, The Theater Bizarre, V/H/S, The Prophecy, Humanoids From The Deep, Death of the Virgin.
Slumber Party Massacre - can't go wrong with a classic.
My Bloody Valentine and Re-Animator- see above!
Bloody Birthday - 80's evil brat cheese
Devil's Playground and The Horde - some zombie action
The Ghost and Dream Home
Blood and Lace, Cinderella, Phone, and a lot of others.