I need to set up an ecommerce site for a wholesale book seller, and the shopping cart I choose needs to have the following features:
1) Most be Coldfusion based
2) Must work with either Access or MSSQL
3) Must support bulk order discounts (1-50 books = $5.00 ea / 51-250 books = $4.50 ea, etc.)
4) Must allow for the adding of data custom fields (ISBN #, Author, Publisher, etc.)
5) Must interface with Quickbooks - either directly or using data export / import capabilities
6) Must be purchasable as a downloadable / installable application (not a hosted solution)
Please advise on the best shopping cart application that meets the above criteria.