Another great scene from Dawn of the Dead.  I love the slow grasping zombies.  Personally I have an issue with fast moving zombies.  Zombies should be slow moving and relentlessly menacing.  The very first zombie movie was a black and white movie from 1932 called White Zombie (the movie that inspired Rob Zombie when it came to name his band) starring the great Bela Legosi that featured zombies in the classic Haitian sense; that is, living humans effectively brain dead and under the control of someone.  More recent zombie movies tend to move towards fast zombies, but they kind of bug me.  Slow zombies is the way to go.