We have a site that needs a makeover, currently everything is in PHP with some minor regular expressions that capture data from third party sites. We need the following; 1. Allow visitors to create simple email based accounts. 2. Allow these visitors to save specific content items in their account 3. Users need to be able to do some basic actions using their saved items. 4. Users need to be able to compare their saved items to available items on ebay and amazon. Please be very...