Can you be a little more descriptive in what you want to do?
www.pecash.com
Pecash offers over 20,000 products and a customizable storefront.
www.adultvideoplex.com
Fully customizable including design. You control the prices of the products. You control the e-mail lists of the people that buy from you.
icq me 135378892 or e-mail admin [at] tgparena [dot] com if you have any questions