Web Scraper / Harvester

I require a multithreaded script programmed in any of the following languages: Python, Perl, PHP, or even in C. What I need this script to do is connect to a spcified website and harvest all of its Vendors/Merchants by area. When you are on the site, you can search for deals by City or Zipcode, which will then list vendors specific to categories. I want to script to ask me for either the city or zip and then begin harvesting the names of all the vendors in that area and in every category. The only information I need the script to return back to me is the vendors name and the location. For example, if you went to the website that I will tell you in more detail once you bid, and put the Chicago area as the city and then went to Local › Health & Fitness , you can see a listing of Iconic Optical and it says they are located in Lakeview East, Chicago right next to the name. This is the type of information I would need scraped/harvested from the site. I would like the script to also save the results to a .txt file which saves its name after the zipcode or city I enter. There are many other areas of this site besides "Local" such as "Goods", "Getaways" etc which have there own sub category as well so you will need to do your due diligence on how this program will crawl the site for its results. Looking for experienced programmers for this project! Good luck to all who bid and thanks in advance.