My wife happens to be the manager of the local waldenbooks and our personal collection I dare say is well over 1,000 books! If you are looking for fiction, here is a few select titles as well as certain authors that have yet to write anything bad:
"Last of the Breed" - Louis LaMour (sp)
I think this is still in print. An outstanding book with a survival theme. Without going into too much detail, an American test pilot of Sioux ancestry is shot down over Russia, escapes from prison camp and reverts to his ancestors way of life while making his way across Russia and Siberia to escape to Alaska. EXCELLENT book
"Imperfect Strangers" - Stuart Woods
This is an action packed thriller cover to cover. Highly recommended!! Also, anything else by Stuart Woods that you think looks interesting. I have read all of his books and loved every one!
"The Corps Series" - W.E.B. Griffen. Outstanding books! I have also heard good things about his army series (can't remember what it's called) and the Badge of Honor series (police) but haven't read any of them. I think the Corps is up to 7 or 8 now, and they are all good but it is vital that you start at the beginning with book 1. They are about the Marine Corps during WWII, but you do not have to be a history or WWII buff to love them.
Anything by David Baldacci - these include Absolute Power (even if you have seen the movie, you will like it. The movie did not even include the main character from the book!) Total Control, The Winner (outstanding)and a couple of others
Tom Clancy is good sometimes (if you like a lot of wordy jargon). I really liked Without Remorse
Non-fiction:
I second the nomination of Marine Sniper
Into the Wild - John Krakauer. I assume you have already read this one.
Into Thin Air - John Krakauer. If you want a real life story about human survival in THE harshest conditions imaginable, this is the one to get. Best book I have read in the last ten years! If possible, get the audio version. It is read by the author (who was there) and adds a lot to the story!
Andy McNabb (sp?) wrote two books about the SAS. One is called "Bravo Two Zero" and is about the Gulf War (he was captured and became a POW), and I can't remember the name of the other one but it is about his SAS training and life in the SAS in general. These are very good books. Highly recommended.
Well, that should get you started! Believe it or not I had to think long and hard to get the list down this small! There are so many good books out there. If anyone needs suggestions in specific categories, or just general good reads feel free to email me. My wife and I both read anything we can get our hands on and I can probably point you in a few directions!