We have six webshops (Magento 1.6.2). For these webshops we need an extension which auto imports or updates products from different product feeds from our suppliers (CSV).
It's one install of Magento with different catalogs, so this extension must import different feeds to different catalogs. If articles already exist only new information (such as new price, stock status, and so on) should be updated.
This extension should run every night and e-mail a status / log of the imports.