Database Project

We need to integrate our inventory from basic xls list of fields to Database? ? We use Quickbooks for one. I can push data into Quickbooks NP and setup web connector. But need more. Can setup our own web server if it helps. ? We sell used network and telecom gear. But our inventory changes daily we have many items qty of 1 some we stock others come and go. But its more like a wrecking yard, we get big unit with many part numbers inside, power supply’s, boards, cards. More than 8500 products. ? We upload .csv - .xls files with our inventory to various vendors daily. Most use the same fields. ? We also have a Zen Cart store, 3 ProStores (Ebay). Need in these formats also. ? Would like to have an interface, web based or other, That can have access to Quickbooks DB and give me a browse and convert to file for our upload vendors (6 fields), then one for Zen Cart Easy Populate and then one for ProStores (Ebay). ? These will need to duplicate some fields, combine some, and convert our manufacturer names to category names in Prostores. Also need to have a place to choose out certain manufactures of our main inventory to each salesmen’s Prostore. ? Please give me a bid as this will lead to more. Thanks