I have yet to find one book that has all the info I want in it.

For a good general overview, I thought Victoria Stillwell's book "It's Me or The Dog" was amazing.
If you want to feed raw, the best place to look is on the internet. There are TONS of raw feeding groups and message boards. I would find one with large breed members as giant breeds require different nutrition than other dogs, particularly in puppyhood. There are also many different raw feeding philosophies, not limited to BARF and Prey Model. Doing some internet reading would get you up to speed on what each involves, and then you can find appropriate book recommendations from there.
Kibblewise, Giant breeds need special nutrition, particularly as pups. There are many large breed formulas out there that are not so great. While I love grain free, its also generally inappropriate for a giant breed puppy. I work in the pet industry and am particularly interested in pet food. I've heard the absolute best things about Eagle Pack for giant breed dogs. They have a very nice holistic line that I would feel comfortable recommending to anyone (I'm extremely picky). I've had many owners and breeder of giant dogs tell me that they have heard that most of the dogs who live past 10 years in their breed that they know, are eating EP. They have excellent information on their website last i looked on how the formulated their giant breed foods, and how it specifically prevents the joint and growth issues that plague giant breed puppies.
Vaccination wise, read the AAHA guidelines here-
http://www.aahanet.org/PublicDocumen...s06Revised.pdf
Also, look up Jean Dodds, who is the expert on alternate vaccines in dogs.
I would NOT recommend getting a giant breed for protection work, particularly as this is basically a first dog. Most people will respect a large dog based on looks alone, training it for protection work is an extra liability for the dog and your family, and not something I would recommend a beginner, or the average pet owner, get into.
Exercise wise- most giant breeds actually require LESS exercise than smaller dogs. Danes for instance can be quite content in an apartment with a few walks. During the puppy period, it is essential to monitor their exercise to prevent injury. Most people do not recommended heavy exercise, or any type of jumping for giant breed pups. Exercise can actually injure them seriously, generally it is only recommended that they play normally, no extra exercise routine like running, jogging, long hikes, even long games of fetch, etc because it would be unduly stressful to the young dog.
Cost wise, most dog food gives a recommended amount on the bag. Its different for all foods, generally though, higher quality foods you feed much less of. To get a rough idea of the price per day to feed foods, use this formula-(price per bag * weight of 1 cup (in pounds) * number of recommended cups per day)/weight of the bag (in pounds)
That will give you the price/day
For the weight of one cup, I weighed a cup of the kibble I was feeding, I figured weight can't vary too drastically across kibbles
For the # of recommended cups, I used the lowest recommended # of cups/day for my weight dog. Normally with food, I find you have to feed even less than that in actual practice (Unless your dog is exceptionally active, or prone to being thing)
You might try it to compare the brands you like and see what results you get.
A dog of the size you are considering will probably need between 3-8+cups per day depending on the dogs activity level, their size, and the quality of food being fed.
I would also strongly recommend training classes for a dog of the size you are considering (all dogs really) So you'll want to read up on training methods and see what you agree with, and then look into local trainers of the same philosophy. I'm a big fan of positive reinforcement.
For added research, I would recommend the following-
- Join some message boards or groups for the breeds you are interested in. I try to join a few because different groups will have different dog-rearing philosophies, so you can get a wide view of how these breeds are, and what its like to live with them.
-Contact some breeders of the breeds you are interested in. I send a polite email telling them who I am, why I'm interested in their breed, and any breed specific questions you may have. If a breed is not going to be a good fit for your family, they'll generally let you know. Its also a good way to learn about breed quirks you might not be able to live with (stubborn, drool, tails that knock things off furniture, grooming requirements, etc) or health problems you don't feel prepared to risk (maybe the breed is prone to cancer, heart problems, etc) Generally breeders are THRILLED that you're doing research before even considering purchasing a dog, and go out of their way to help. They may let you spend some time getting to know their dogs, which can be invaluable, and if you find another naturally minded breeder, they can mentor you (this is becoming more common among dog show folks) A bonus is that when you ARE ready for a pup, you have a good relationship with local breeders if you choose to go that route
- Look into reading the Whole Dog Journal. My library carries it with the magazines. Its an excellent periodical that covers all kinds of natural topics, from a yearly top foods list, to flea control, to training, to alternative health care. They accept no outside advertising as well. Because of this, they only make money on subscriptions, so you are highly unlikely to find copies. You may need to subscribe if your library does not have it.