Whilst tihs is perhaps not a book I'd recommend to buy, it's certainly worth getting via your library. It's the story of the original volunteers to the SAS in the Western Desert and then tells in their own words what happened to them in Italy and Northern Europe. The bloke who wrote it got unparalled access to the originals including David Stirling. It came off the back of a TV programme he made in the mid 1980's about the hunt for the killers of the SAS who were captured in Operation Loyton. This other book called The Secret Hunters.
Sounds good, Airborne. I've got The Phantom Major about David Stirling, and These Men are Dangerous, about the SAS in France after D-Day. Both are cracking reads, but the first one is complemented by The Long Range Desert Group by Kennedy-Shaw, which really puts the whole shebang in context!