Advanced Permissions for Magento
Advanced Permissions Extension enables admin to assign permissions to users for editing products, managing product categories, managing orders, design and configurations within specific catalogs, store views and websites. This extension will be particularly useful for stores with big catalogs, for multiple store views and for businesses that need to allow users with restricted permissions to manage their own products. With this extension you will be able to give your staff clearly defined responsibilities and will gain better control over your information. Full list of features is available at the extension’s homepage.