Crawler needed to capture data from site

Hi. I need a crawler building to capture information from my suppliers website. I need it to capture the following information found on each products page - Product Name Product Description Product Image Product Code Product Barcode Product Stock Status Product Price I would also like it to capture the category tree for each product. I would like two programs I can run for this project. The first program will be to capture all of the above, which I will run fairly infrequently. The second program will capture the product code and stock status, which I will run more frequently to update my database. Both programs should save the data into something like a csv or excel sheet. The program will be able to download the product images also into a local file. My suppliers site requires that I am logged in to access the information. Thanks