I am developing a site similar to Amazon but I need help with the shopping cart concept that deals with multiple sellers.
Basically, sellers can list products with various payment methods and shipping methods. I would like to have a buyer add products from multiple sellers and complete the purchase easily at one time.
So how does the concept work when dealing with how the money gets distributed and such?
I guess you are talking about a site similar to etsy.com where people can come in and list their products and you earn a commission for each sale.
There are a couple of options which I could suggest
Marketpress coupled with a theme like Framemarket - http://premium.wpmudev.org/project/e-commerce
X-Cart Pro - http://www.x-cart.com/pro_features.html
Hope this helps.
Did you take a look to the ones mentioned in the post above?
If they do not suit your needs, clarify it in more detail, please.