A Question for Readers/Writers

Okay, so I'm trying to figure out how many "body snatcher" type of stories have been done in science fiction. I know of some stories but I'm hoping people on my friends list can point out some recent short stories or novels I've missed:

The Puppet Masters, by Robert A. Heinlein
It Came From Outer Space, by Ray Bradbury
The Body Snatchers, by Jack Finney
The Host, (forthcoming) by Stephenie Meyer

What have I missed? Also, what do you like or dislike about the body snatcher concept?

Your comments are very much appreciated and helpful to me right now!

Steph