A long title but hopefully will be enough! Basically, I want to create a feture in Visual Studio that will do the following: When activated, places an option/link in the site collection options in Site Actions. This link will then open a page with a completely different user interface page that has several selectable options for the user. Say for example the user selects a list and some fields or other options and those selections will be stored somewhere (this is what I really want to know how to do). Then the user will "Apply" the settings and this action will then render custom content in a custom delegate control stored in the master page. I know it sounds like a webpart, but I have seen many of these things and they do not look like webparts and there are no webpart zones. I believe they are custom controls which I have built before and I have built custom delegate controls. I am wanting mainly a cool user interface that runs on the SharePoint page and somehow stores the options and this is global at the site collection.
Whew! I tried to be as detailed as possible, but I am just not sure what the correct terms are for some of these things. I have built custom application pages and that may be what it is, but I just do not know how to store the selected options so that they are then used to create the HTML that will be placed in the delegate control.
EDIT: A good example to a point would be Nintex Workflow or something similar. Though I am not trying to build a workflow tool. I know it creates a workflow, but it also stores the settings and user selections that create the workflow and it has a great user interface. That's what I would like to have for my custom tool.
Any thougts or suggestions are appreciated!