Database management tool + CS-Cart

We are currently undertaking a new e-commerece (CS-Cart) website build which involves the upload of 30,000 plus individual products. The data is provided as a CSV feed (consisting of several files) which requires a database management tool to remap and optimize the data for periodic import into the new CS-Cart based website. + The source data is only accessible via secure FTP + Each column will need to feature tools to find and replace data + Data will be updated via a number of separate CSV files + Export data will need to be automatically uploaded to CS-Cart, and provided as downloadable files no-larger the 5mb