Hi, I'm researching how to build a multi vendor ecommerce web site for downloadable stock images (photos and art, vector and other types of files). I like the functionality of bigstockphoto.com, as well as the simplicity of using Wordpress as a CMS. Has anyone worked on or developed such a site/? Any recommendations? I will need both individual products purchasing (variable pricing) and subscriptions model (with daily limits). Unfortunately, nothing out there I've seen so far has the out-of-the-box capabilities I need. Any ideas are much appreciated!