darkwing_duck1
Vice Admiral
There was also a rather good documentary special along the same lines, called Life After People (I think), which is worth checking out.
Yeah, the special is based on the book...and I DO want to see it.
I'll also second the recommendation of World War Z, by Max Brooks. It's a pretty stunning take on the idea of a "zombie apocalypse," and it's one of the most realistic treatments of the subject that I know of.
You could trade out "zombie apocalypse" for any other plague, or some massive loss of infrastructure (such as predicted by the "solar storm" people), and it would read much the same...that's what's so disturbing about it. The author really does a good job of showing humanity's good AND bad sides under pressure.