Going Gray... or White?

I have wanted to grow out my hair for years. I was an older mother and thought I needed to dye my hair so I wouldn't look like the grandma instead of the mother. You get into a rut. I told myself that I'd let it grow out when Emma graduated from high school. Then I postponed it until I graduated from nursing school. Then I decided to wait a few more months until I got a job. So now I have the empty nest, the degree and the job and it is time. It has been about 2 1/2 months and I have a little over an inch of natural color. I am beginning to see that I still have some streaks of brown mingled with white rather than gray. And it looks like I have more white at my center part line than lower down. I am getting anxious to cut it, but I have never liked to wear my hair short.. and I don't like the two toned look, but what can I do?? I found a link to this article that I thought was good. So please don't look at me and wonder why I am letting myself go. It's an ongoing project to uncover the real me!