Crawl specified websites and dump information to DB

This post is more of a can it be done and if it can what will it cost me. I am looking for specific information that is located on 3 or 4 websites. The websites list special niche business. I need someone/program to crawl each site and dump the following information to a database: Business name Business Street Address Business City Business State Business Zip Code Business Phone Business Website Address Possibly some other information too. Each business has a listing on one of the sites I will provide. Some of the business will be isted multiple times, and I only want one instance of the business. Can this be done? How long will it take? How much will you charge? Thanks for bidding. Must accept GAF payment only. Good communication a must. Examples of this type of work if you have them is appriciated. Thanks!