I need a functioning shopping cart site that pulls product information (desc, images, prices etc etc) from external sites and automatically imports all the data via RSS? or (other means - please advise) and continues to regularly check for updates from these external sources and imports accordingly. Also need to adjust the dollar values of each product before importing.
I dont want anything else developed just a working prototype of the above.
Please advise of best shopping cart solution, how the above will be achieved and in what time frame.