Our company has just finished development of a new webmasters tool that allows them to sell poker and gaming products in their site. It appears to visitors as if the products are directly from the web site, versus some third party.
You can read more about it here.
http://www.wedoitallvegas.net/poker-chips-wholesale.html
http://www.prweb.com/releases/2006/03/prweb363210.htm
This plug in works as a stand alone client. You get a shopping cart and seperate credit card charges. It is just like having your own store.