Use VBA to lock all cell formatting except background color?

Hi there!

Is it possible to use VBA to lock all cell formatting in a range of cells except for background color? I've got a form in which I need to lock down the field formats (date, etc.) but my users want to be able to "highlight" fields by changing the background color.

Thanks very much in advance!

I am also interested in how to do this, I want to be able to lock cells for formatting only, but be able to change the values, or paste content into them.