If this shows up twice please delete one. I cant find it. Sorry

I am making a client area and have a link on the main menu using the WP3.0 Menu feature. Under the client menu will be a login/logout option, and if they are logged in and have permission to see a client section then the clients menu item with all projects as a submenu will appear. Problem is that as of now you can go to my site without being logged in and go to clients and see a list of all client pages(although clicking on one will require you to login) I need them hidden. Hope somebody can help.