Building e-business

Hi all gurus: I wana build an e-business website where i can sell my products including tobacco olive oil, honey, caviar and more. here is what i wanna do: lets say John sells cigarettes, Mary sells Oil, David honey and most other products . i wanna builld a website that contains all these goods, and when a buyer orders something, i get my comission, and order goes directly to original seller, and seller ships it to buyer. lets say someone ordered 5 jars or olive oil from my website, Mary receives that order, her sale price is $4 a jar but i will list it as $6. so i make ($ 2 - money transfer company profit.) Mary ships it to buyer, i don't ship nothing. Does it sound awkward? I also have my own goods in my store but i wanna do this too. I cant sell my stuff online. What software should i study? I know basic html frame and some Java&XML and database. I see people sell stuff at very simple and stupid web pages. I need useful ideas. Sincerely ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform No platform. I just need to know how to relate all these databases to the original sellers'. When a product becomes out of stock at one particular seller, my website also should show it as out of stock, since i cant accept order for such item. Sounds complicated but if i study i believe i can do.