How can I view the unix files and directories in the finder?


How can I view the Unix directories and files in the OS X finder? I need to move files to and from directories such as /etc and /usr, but can't seem to find a preference button that says "View All Files - including Darwin directories." Please help... :(
If you download Tinker Tool from Version Tracker it allows you to view hidden files. I'm not sure if it shows all the files you want, but apparently it allows you to view all hidden files...:)

Hope that helps!