Amazon Specialized Search

I need an application which I can use to search for specific criteria in [login to view URL] such as price spread between new and used price, minimum price, sales ranking etc. ## Deliverables The program should be able to do the following: 1. Limit searches to specific catagories and subcatagories on Amazon; such as music, movies, etc. 2. Search based on all or some the following variable criteria: (Fields should be capable of being left blank) a. Minimum percentage percentage increase of new over used b. Minimum new price c. Maximum used price d. Amazon catagory e. Minimum sales ranking 3. Present results with the following information and allow for the results to be sorted by any of the following: (results could be displayed in excel) a. Item name with a clickable link to the item on [login to view URL] b. ASIN or ISBN (universal item identification number) c. used price d. new price e. Price Difference (new-used) f. percentage increase of new over used (new-used/used) g. Amazon sales rank For Instance, I may want this program to search amazon for all items in music, with a minimum new price of $50, a minimum percentage increase of 300% and a minimum sales rank of 100,000. The results would identify all products being sold at [login to view URL] which would fit my criteria and these results would be able to be sorted based on the different criteria displayed in the result list. I would then be able to sort the results, click on specific items and purchase them at amazon. Please contact me directly for any further description. I have a fairly clear idea of what I want but need you to tell me the best way to acheive this.