... i also just finished "without remorse" by tom clancy, he's my favourite writer
That was probably his best novel. well, maybe a tossup between WR and Red Storm Rising.
I liked
The Sum of all Fears. And if you also liked this book, Thomas Harris'
Black Sunday was another along these lines that I really liked.
Schrödinger's Rabbits. is good over view of how strange quantum theory really is. Its not bogged down by the details so its a good even for The casual reader.
Have you read The Elegant Universe by Brian Greene? It is a layman's guide to string theory and a fantastic read. He also did a 3 hour special on PBS (I think you can watch it on their website.)
I enjoyed
Hyperspace by Michio Kaku, and
In Search of Schrodinger's Cat by John Gribbin. I've read a million of these type of books, but those two are the most memorable for me.
I did like McCarthy and I had a great soft spot for Kurt V. as a person.
The Road I liked quite a bit. But I'm a fan of apocalyptic fiction. SK's
The Stand is one of my all time favorites.
Vonnegut is great. One of the most memorable books of his I've read was
Timequake.
The Terror (0ne heck of a novel based on the Historical HMS Terror and Erabus of the Franklin Expedition)
Then you might like Nathaniel Philbrick's
In the Heart of the Sea.
Endurance by Alfred Lansing is another along these lines. I enjoyed both quite a bit.
...Guns, Germs, and Steel....
Ah yes. That's one on my radar. Lately I've gotten the 'bug' for learning about pathogens (yeah, I know that's not what
Guns, Germs, and Steel is entirely about, but it provided a segue).
Two books that I enjoyed about deadly germs were Richard Preston's
The Hot Zone, and
The Demon in the Freezer.
Well no-one here has mentioned "Zen and the Art of Motorcycle Maintenance" yet, and probably for good reason.
It's definitely more philosophy than motorcycle maintenance, but I enjoyed it nonetheless.

Two other books I greatly enjoyed this year were The Kite Runner and A Thousand Splendid Suns by the Afghan writer Khaled Hosseini.
I've also read
The Kite Runner. I thought it was pretty good for the most part, but a little too deus ex machina for my taste. Definitely a tear-jerker though.
If we can talk just "pop" fiction. I loved The Shining. Thought the movie was great. Then I read the book. Wow. Kept me looking over my shoulder for a week.
The book was good, but I thought this was one of those rare cases where the movie was a bit better. Both were good though.
If you like SK, I liked
'Salem's Lot quite a bit.
I go through lots of different interests. I've read quite a bit of true crime, apocalyptic fiction, horror, science, philosophy, general fiction, survival stories, + other stuff.
Some memorable books I've read that I haven't already mentioned are:
Zodiac, by Robert Graysmith
Space, by James Michener
Earth Abides, by George Stewart
The Rising, and
City of the Dead, by Brian Keene
Alive, by Piers Paul Read
Lucifer's Hammer, by Larry Niven and Jerry Pournelle
The God Delusion, by Richard Dawkins (don't hate...)
The Gift of Fear, by Gavin De Becker
This Present Darkness, and
Piercing the Darkness, by Frank Peretti
All Quiet on the Western Front, by Erich Maria Remarque
Hiroshima, by John Hersey
Sex and the Origins of Death, by William R. Clark
Innumeracy, by John Allen Paulos
7 Habits of Highly Effective People, by Stephen Covey
I better stop here otherwise the list may get out of hand....