Hi Matt, if your thinking about becoming a vendor, please think about it and don't jump in at the deep end. The best advice I can give is research you products and research the forums. What are people selling, What are people reviewing, What do people want, Who supplies them and what is the best price I can offer them at? Also have a direction for the site. Do I want to go down the low tech road, high tech road, mixing road etc. Make no mistake, it is time consuming like any business. If you are in employment and want to do this as a sideline, have you the time to spare and what sort of service can you offer your customers. Unlike Ebay, in this market you have to be able to dispatch on a daily basis and provide full customer support. Finally, as KMS said, there are many, many vendors already out there. A handful are the biggies, the rest of us in reality are very small fishes in a very big pond!