I'd like to add "Return of the Living Dead 2," if for no other reason than that at about 1:23 there is this awesome cameo of Michael Jackson's zombie from Thriller:
Yes, that's the MJ zombie being electocuted. Pure Awesomeness.
The "Return of the Living Dead" movies are hilarious zomcom romps. They're also the reason that zombies eat brains.
Here's the trailer: