CCK checkbox field populated by a view

Hi all

I was hoping someone could give me some direction with the following functionality.

I have a taxonomy named color and it contains items red,blue and green.

I have also a taxonomy reference field to the user registration form. So a user will be "associated" with one or multiple of the above three colors. I have also create a view that displays the users information such as their user ID and username.

I have a content type(CT1) with a taxonomy reference field that refers to the color taxonomy mentioned above. Here is what I am looking to do. When the user is creating new CT1 content and he completes the taxonomy reference field, I would like to first filter the above mentioned view to the selected taxonomy item and then display the relevant users in a sort of radio box format so the person creating the contact can select one of the users.

I hope this makes sense and any help would be greatly appreciated.