Web based accounting system

Complete web based accounting system based primary on electronic documents and internet interaction with customers and other parties. Required functionalites: A) Document Module for simple scanning of documents and uploading to central server B) Core Accounting (general ledger, financial reporting, accounts payable and accounts receivable). C) Bank reconciliation and reconciliation of balance accounts in general D) Fixed asset management Administration requirements A) Users and Roles, in addition to custom read/write access for module functionalities B) Module management, installation/uninstallation C) Module settings, settings for every module D) Global configurations (site, database, mailers, language management etc) The big picture The system would be part of a larger commercial module system consisting of CRM, Project Management, Billing and Payroll, Document Management, Communication (mail, fax, chat) etc. The module interaction would be great and of the utmost importance, and the developer need to keep this in mind upon developing. N-tier architecture is required with minimal use of bandwith and CPU on client side. Microsoft BizTalk 2004 would be implemented at a later point, and experience with this tool would be positive. We will use the same company for future development of additional modules and custom work if you're professional, productive and your work is nothing but supreme. GUI is provided. NDA has to be signed after bid acceptance. Unprofessional bids are not wanted.