Setup Data Feeds For Price Comparison Sites

I need a data feed setting up for our website for shopping/price comparison sites. For example, for one site, here's the description of providing a feed: ============================= Your feed can be collected from your website or FTP site A file containing product data is regularly created and hosted on your site (or FTP server). The file could be a dynamic script or page that accesses a database. Please state the file's location. ================================= You will have to setup the feed in TXT or XML format. Note: we need this doing for TWO different shopping/price comparison sites...so your bid will have to reflect this. ## Deliverables As above. We will upload the feed to our website. ## Platform -