This new theme transforms your WordPress install into a fully functional Ecommerce store complete with backend administration. Use wordpress to easily manage your store that sells Tangible or intangible/digital goods.
A few useful things to keep in mind when working with WordPress
Konstantin already did a great job explaining the rest of us how to start working with custom post types, but here is a more detailed article, with the source code to download for those of you working with WordPress 3.0 already! Thank you Konstantin!