Getting your products into Drupal Commerce is a key part of building your site. Luckily, the Commerce Feeds module provides a great way to do this. In this screencast we look at how to take a CSV file and turn it into products and product reference nodes. You can use the same feed yourself to populate a dev store: http://d7.randyfay.com/books/feed
The manual page that goes with this video is http://www.drupalcommerce.org/node/467. You may also be interested in the more advanced import demonstrated in vimeo.com/25668519.
In Drupal Commerce, the "product" and "product display node" are different things. So to use views of nodes, we have to use a relationship, which is new to some. This screencast shows how to use a Views Relationship to let a view of nodes access information that's on the product.
In this video I demonstrate how to do a complex pricing rule - where you use a taxonomy term applied to the product (and accessible from the line item) to determine whether a discount should be applied. The manual page that goes with this video is http://www.drupalcommerce.org/node/461
This screencast expands the simple import we did before using Commerce Feeds. Here we add an attribute to the product, and then import multivalued product reference fields on the node. The manual page that goes with this is http://www.drupalcommerce.org/node/467. If you haven't already you may want to watch the introductory importing screencast at vimeo.com/22731881.