Nielsen/NetRatings recently reported the top converting e-commerce sites for February. They were:
Home Shopping Network
You may have noticed flower shops at the top of this list, which makes sense considering that it's February. What you may not have noticed is that all ten of the top converting sites use VeriSign SSL. Furthermore, four of the ten(Proflowers, eBay, Symantec, and HSN) have chosen to display the VeriSign Secured Seal on their sites.