Bulid Database for Customer Login to access Pages

We are a Photography business and would like our customers to be able to Login to a page and access jobs that we put in a gallery for them to view and select photos. next step would be for us to receive a notification that the customer has chosen certian photos from the Gallery and notify us in an email form etc It needs to be secure and password Authentication etc Possibilities could be setting up .htaccess Look forward to any replies, Kind Regards, Jason 0424 593 043