osCommerce allows Customers to:

Create their own ecommerce User Accounts
See their own ecommerce Order History
Search the store for specific products or manufacturers
Receive E-mail notifications about New and Updated Products
Make Secure Credit Card transactions
See the Number of Products in each Category
See Bestseller lists
See what other customers have purchased
Pay with 2Checkout, PayPal, PSiGate and many more

Benefits to the Store Owner:

View Statistics for Products, Customers and Page Views
Create Special Offers
Set Tax Zones, Classes, and Rates
Display Multi-currency prices
Decide what to display in the Product Listings
Backup the Database
Advertising Banner Tool
Create and send e-mail newsletters
osCommerce is Professional, Cost Effective and Customizable