Professional E-Commerce

[envy-uk]

I'm currently looking at starting a mail order/drop shipping company with a business partner. However, there's currently someone trying to sell me an existing business, but I'm sure that I can create what they have for a fraction of the price they're looking for.

Can anyone suggest a professional e-commerce solution?

[Broncos]

Zen Cart: http://www.zen-cart.com/modules/frontpage/