There’s very few Ecommerce WordPress themes available online. One of the exceptions is Velvet Sky, a beautiful Ecommmerce design that Dapur Pixel developed for Smashing Magazine in June this year (it was also released for the open source
E-Commerce application PrestaShop).
Designed for WordPress 3.1+, Velvet Sky boasts a beautiful featured slider on the home page. Your most popular and newest products can be highlighted underneath this area and advertising can be placed here too.
The header features a main navigation menu (which supports sub menus) and links to the customers account and shopping cart. More page links can be placed in the footer area.
The shopping experience is very professional. One click checkouts are supported and customers can purchase as a guest if they don’t want to register on your site.
It’s pleasing to see a design of this quality being released for free. The vast majority of Ecommerce WordPress themes will set you back at least $30 and Velvet Sky doesn’t look out of place next to the paid alternatives.
I recommending trying it out if you are looking for a good Ecommerce design. It’s free so you’ve nothing to lose, if it doesn’t work out for you just try something else 
Thanks,
Kevin
Velvet Sky WordPress Theme: Information & Download | Demo
