Add product information to existing MODx website.

I need to add product information to an existing website. We need to have a page where the products are summarized by category, then a summary page for all products in that category, then a product page for each product. We want to only have to update information in one place, so if a product name changed we would change it say on the main product page and it would automatically update on the summary page. Also, if a new product was added it would automatically show up on the summary page. Would also need a way to feature certain prodcuts and order them. The site we want to add the customization to is [login to view URL] We would like the product and category pages set up very similar to this site along with product graphics. [login to view URL] if you click on View Gas Furnaces, you will see the featured furnaces and then a listing of other furnaces. Also, included in the project would be the addition of all of these products listed on the central hvac site. I think there are about 82 individual products. Please let me know of any clarification