"I have had a shot at almost the open source carts mentioned above but I end up finding opencart is the fastest, most light-weight, easy-to-use-and-modified, powerful and nice-looking cart. Check out the 1.5x version of opencart. It looks so awesome! So many built-in modules, which need to paid for with other carts. "
"Has anyone come across this e-commerce system before - shopzuma.com? Is it any good?"
"Miracles, what is bad about addons???"
"I like CS-Cart, it now has a free Community Edition and the licence is very reasonable for the Pro version! I am currently looking at OpenCart which is actually quite similar in many ways to CS-Cart. I've never looked at PrestaShop, but will now!"
"OpenCart is the beat of the bunch. Only those not interested in having the best cart they can have would select Prestashop..."
"Opencart is pretty and flexible."
"Xcart is fantastic cart I have ever worked on. No other cart could be like this.
Prestashop is also a good cart. Having lots of good features. It stands as a tough competitor to xcart as it is open source."
– Prasoon Sharma
"I'm using X-cart for ~7 years now and highly recommend it as a very flexible storefront. Behind it is great tech support and team is providing constant flow of new features! "
"Check out Pricetack falling price service. Like ebay but prices go down."