Accelecart
Accelecart offers over 170 function managers for complete site management and real-time e-commerce. Features: Sell products, create categories, build dynamic HTML pages, create and manage mail lists, integrate with your choice of 10 payment processors, including Authorize.net, LinkPoint, PayPal and WorldPay, create and manage dynamic forms, UPS real time query updates, slick administrative system for Internet access, order tracking, admin stats and more.