Thanks for the advice, Lawrence/topebaydog...

I've never heard of Magento before (downloading their slow-loading screenscast now to take a look). I also ran into another one in my research called Shopify which looks awesome, but I haven't heard of that one either.

Both Shop a la Cart and Shopify are hosted shopping carts which is something I really want... I don't have the experience or time to install or configure the thing myself. Is Zen hosted?