Need online subscription payment system

We have a web application. Right now we are giving our services for free. We intend to start charging for some of our services. Charging will be done on a monthly basis for access to our services. We need an online payment system that support paypal, credit cards, and other payment types. Payments subscriptions will be recurring, so the system will need to know to charge again and again until the subscription has expired. For each time a charge is made to an individual, then an email with the invoice should be sent out to the user. We would prefer a prebuilt online payment system that supports above and have the coder integrate it into our system. Last resort would be to build a custom system if this is not possible. Coder will recommend industry payment systems that supports above and be knowledgeable in them. Previous experience with this type of work and access to Yahoo IM is mandatory. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform windows