My condolences to you and your family.
I lost my dad when I was about the same age as your daughter. That was a long time ago, but I still wonder occasionally what it would have been like to have a father during those formative years. Rest assured your daughter will retain all of her good memories with you. I think writing down your thoughts for her, especially about turning points in life is a good idea, and making videos is, too. But the important thing to resolve from my experience is something work out with your wife. Kids need role models. After your daughter works her way through the trauma of your loss, I think she will seek someone to give her perspective since you will not be there for her, even if she is not consciously doing so. By no means am I suggesting your wife go out and "get a male role model" for her, but rather actively seek the opportunity to find one for your daughter. Maybe the "Big Brothers Big Sisters" program would be a good place to start when the time is right, or maybe another approach. I am sure you have discussed this sort of thing with your wife by now, but I looking back, having someone to go to in the absence of a parent makes a big difference after the loss. I would also archive this /. post for her so that she can see it someday. It will tell her something about the community that you are part of, and that will tell her more about you, too.