Do you have any advice (on writing) for me?

I feel compelled to write two books.
One would be about nurses - neonatal intensive care nurses - because I have always been impressed with the caring and professionalism that nurses dish out. I think such a thing, or close to it, has already been done, because I collect books about doctors and nurses, and I feel I could almost dream up the format and wording in my sleep, from what I've already read. It's just that I had very personal, emotional experiences with the neonatal intensive care nurses that helped my newborn, and I would like to draw more attention to these lovely people, even if it doesn't need to be. It's a personal journey.
The format I'd like to follow is: interview X number of nurses (how many?) from the local hospitals. If I establish rapport with some of them, perhaps they could allow me to contact other nurses they know at other institutions. After a while I think recurring themes will make themselves evident - I can almost guess some of the themes, from the books on nurses I've already read. Good and bad interactions with the families involved - blessed encounters, annoying noncompliances. Support and SNAFUs from management. What makes for good and bad interactions with doctors and other support staff. Yes, the nurse is the Goddess of Life Support and others merely support Her/His efforts. ;-)
(In fact, maybe I could fake all the supposed interviews and create just a work of fiction?! No, I think real stories would have more power and of course, the veracity of experience.)
The second book would be about a young man I saw once for a few hours when I was young. I was camping in Whitehorse, Yukon territory, at first in a public campground right in town. The next tent over, there was a handsome young man about my age. He looked very perturbed and even cried a little - whenever he would pull out and reread a letter he was carrying with him. I wanted to go up to him and simply hug him, without speaking, but I never worked up the courage. I also wanted to accord him his dignity in this personal experience.
This man lives on in my brain. I wrote a [melancholy then hopeful] song to this unknown stranger, and there is a movie that always makes me think of him. I can hardly look at my Yukon photos without thinking of him. I wish I had surreptitiously photographed him. Instead, I photographed spots all around him.
I would like the second book to have 3 different outcomes. Has such a thing ever been done? Would it be acceptable to the reader? The 3 outcomes would be progressively more hopeful, based on what was actually in the letter, and if I ended up talking to him (and comforting him, and us falling in love and moving to British Columbia together, ha ha).
This post ©reated by Ribonuff on September 16, 2007.