How can I make a column editable only to a few users in SharePoint?

I want to create a couple of columns in a doc library, which should be editable only for a few users. These users can be part of a single group. However currently, this is editable by all users and does not serve my purpose. 开发者_JS百科My SP site is created using WSS 3.0 and workflows are built using SP designer.

There is an interesting codeplex project (SPListDisplaySetting) which will fit your needs, I think?!