Smack, if you're interested in books on survival at sea, there was a book written about 3 guys shot down in the Pacific in WWII. All they had was their clothes and what they had on at the time - no survival packs! I believe they had a knife between the three of them, and I seem to remember them catching rainwater with their clothes. Finally beached on an island after 2-3 months at sea like that. It's been like 20 years since I read that story, I'll see if I can dig up the title for you if you want.
"Anyone who would give up a little Liberty, for a little Security, deserves neither, and will lose Both" - Benjamin Franklin