Answer
I would suggest starting off with ebay.com first. It is relatively easy to set up and very cost effective. You can also start your own store own ebay and have customers shop your store on ebay, and already have a large market for your product. I would definetly recommend that you research ebay first and maybe give it a try first. At lot of people use ebay to start and continue their business online even when they maintain there own website due to the fact that so many people already shop there and its a new way to build clients. Consider looking at a few of their tutorials.