Website Login - Facebook App Integration

Please let us know which modules (please provide links) you would use when you place a bid. All modules will be looked over to ensure they are up-to-date before a decision is made. When a user registers with their e-mail address they should be able to select or type their state and auto populate cities for that state to choose from. When a user logs in with facebook: Pull in a users e-mail, profile picture, current [login to view URL] location needs to be replaced/associated with the current choices available in Drupal. These two must work together to create a relationship or use the same selection. The closest match should automatically be chosen for facebook users. In the instance that no matches are available, a new city/state should be created for that user only, the new city or state should NOT show up in the auto-populate. No duplicates should be created. We would like to have all Countries, cities, states made available to choose from, if possible. Currently we are using the following Drupal Modules associated with this project: Facebook OAuth: [login to view URL] Location: [login to view URL] Taxonomy manager: [login to view URL] Entity: [login to view URL] As well as the normal, Rules, Views and other common modules. Please let us know which modules (please provide links) you would use when you place a bid. All modules will be looked over to ensure they are up-to-date before a decision is made. You will have access to the facebook app, as well as the website. The goal is to provide local news to users in their city. If this process is too complex feel free to provide an alternate solution you recommend moving forward with.