If you're looking for a cheap or free open source ecommerce platform, you've come to the right place.

Well, technically, you could choose just about any ecommerce framework, since the majority of them are rather inexpensive as it is.

However, the open source model has brought about all sorts of praise from the people who use it, especially considering these online store systems are completely free, they're managed and developed by numerous people around the world, and you can typically find lots of documentation and blog posts to guide you along your way.