Create amazon s3 secure links on wordpress

Need some one to do the following things. First of all read it than bid (NO BLIND EYE BIDS PLEASE PLEASE) PROJECT Amazon link protection. Download button creation Sounds easy but in little more detail I have integrated wishlist member with amazon s3 using a third party plugin for file storage. I would like to protect links now only for members no access to anyone when not logged in to the site member area. The content will be private on amazon s3 so it will be requested through access and secret keys. The content and products are visible to everyone only download links are protected. Also download button is visible EXAMPLE SITES ARE BELOW WITH LINKS [login to view URL] [login to view URL] Example of products [login to view URL] [login to view URL]