Collecting prices for items

I need to collect prices, images, weight and other information for 1600 items finding this info on specified websites and using several rules. The result of this job will be filled in [login to view URL] file (you can find it attached) and Images folder. Rules and instructions for Database file: - Item - Use this field as search query to find products on the web-sites. - Part Number - Fill this with information from "Apple Part #:" field on www.powerbookmedic.com. - Weight - Fill this with information from "Weight:" field on www.powerbookmedic.com. - NEW @ [login to view URL] - Put here price for item from this site (condition NEW). - USED @ [login to view URL] - Put here price for item from this site (condition USED, if exist). - NEW @ [login to view URL] - Put here price for item from this site. - NEW @ [login to view URL] - Put here price for item from this site. - NEW @ [login to view URL] - Put here price for item from this site (condition NEW). - USED @ [login to view URL] - Put here price for item from this site (condition USED, if exist). - LCD ONLY @ [login to view URL] - Put here price for item from this site. Check web-site only if item is LCD Display. - New @ eBay - Put here lowest price from BuyItNow auction (condition NEW). - Used @ eBay - Put here lowest price from BuyItNow auction (condition USED). - Refurbished or Mint @ eBay - Put here lowest price from BuyItNow auction (condition Refurbished, Mint Condition). Instructions for images folder: Save biggest possible image (600x600) from macpartsonline.com. If image not available try other websites but first always check macpartsonline.com. File name should be equal to item title. General notes: The normal code for item is XXX-XXXX or XXX-XXXX-X. When you get item different from this code like LP154WP2-G or GS20894 - do not search for this item anywhere except [login to view URL] and [login to view URL] if this is LCD Display. You can get images for this items from www.powerbookmedic.com.