ecommerce

If you are going to setup an online store, your #1 priority by far is having the best shopper experience. Aside from that, you want to use popular software/service from a company that will be around for many years, and that has good features for your needs, with enough other merchant customers from which you can learn.

Here are the three components you will need to setup an ecommerce store front:

1. Merchant Account allows you to accept credit cards
2. Internet Gateway is the interface between your merchant account (bank) and your Internet store front software
3. Store Front Software allows your website visitors to securely place orders, have a shopping cart, specify shipping & billing info, etc

See also the great ecommerce articles by Paul Graham, the inventor of Yahoo Stores.