Barcode Implementation for Oscommerce

As our company keep growing, the demand for better inventory control system is getting more important. We look a way to implement the barcode technology into our oscommerce system. We are looking for someone that has both experience and expertise in barcode technology and oscommerce to create for us an inventory control system. This systems must integrate with oscommerce. We don't want to have a separate system for inventory control. Anyhow, here are the requirements for barcode implementation: 1. Ability to scan and update stock when new packages received at the warehouse 2. Ability to scan and verify items from orders when orders are processed. For example, when a staff process an order, he/she can scan the order invoice to pull out the order. Then he/she can scan each items from that order (order has been pre-picked by someone else) and it will verify that no items are missing, or wrong picked from that order. 3. Ability to scan an item and check the current stock status of it. We are new with the technology, so you can advise and propose us a working solution for inventory control. Bidder must have these experiences with barcode technology and oscommerce. If you have any further questions, please communicate with me via PM.