osCommerce is easy to set up with minimal hosting knowledge. osCommerce has a good community base and evolving steadily. You might want to opt for osCommerce if you require a full feature e-Commerce solution with minimum setup and development.
You though require an osCommerce expert to suit your needs, but that will be reasonable because of quick setup and available free plug-in in osCommerce. It makes work for developer easy and reduces costing for you.
You can manage your products with osCommerce very easily and in a dynamic way. Probably the easiest and dynamic product manager award should go to osCommerce. With out of the box features like support for almost all debit and credit cards, multilingual support, osCommerce is truly an effective e-Commerce solution.
Some benefits of osCommerce include:
1) Easy to set up.
2) Support for wide variety of credit/debit cards.
3) The number of free add-ons.
4) In-built automatic e-mailer system for your buyers/customers.