Hiding Controls from Anonymous Users

I have been working on our latest initiative this weekend, MOSS Connect. As I was plowing through issues I ran across an article where the author was hiding different page elements from anonymous users with the following tag: <Sharepoint:SPSecurityTrimmedControl runat="server" PermissionsString="BrowseDirectories"> [content to be rights-trimmed] </Sharepoint:SPSecurityTrimmedControl>   It occurred to me that I could hide…