Under the Dome comes to my mind since you have indicated you are not afraid of big stories. It is a great one showing people at their best and their worst under extreme circumstances. 'Tis also going to be televised on CBS starting next month.
But I do think there are 2 categories of King books, the ones that are just designed to
scare you and freak you out, and then there are the more quiet and thoughtful ones
usually set in Maine, with a lot of introspection and pathos.
Shawshank Redemption, for instance, is a heartfelt human story, whereas something like
The Shining is just purely terrifying.
I've always found the former category very moving, and hope for books in that genre.
11/22/63 was perfect in that regard.
Thanks for all the recommendations though... (will probably try Full Dark, No Stars...)