Protecting Named Ranges' Names and Disabling Name Manager

Hello,
I have a program with named ranges. I am in the process of protecting everything. I have over 500 named ranges and want to protect them (the names). How do I do this and still allow the user to input values in the cell? In a perfect world I would like for them to be able to see the name in the name bar, but not be able to edit or delete it.

Also, is there a way to prevent the user from seeing any of the named ranges in the Name Manager?

Thanks in advance,
Dustin

The best way to protect information in Excel is to have the next kinds of WB:
1 for input data, very simple structure
2 for checking errors in 1
3 for cosolidating and computing info in 1