246021 Customer Website Crawler

I am looking for a coder who is able to write a simple crawler that retrieves data from our clients website and enters it into our MySQL database. We display listings which sometimes need to be retrieved from our clients websites if a .csv or .sql file cannot be produced. I am pretty flexible on the language of choice and there is a possibility of ongoing work in the form of customisations to the scipt to handle the listings on new clients sites. It will also need to pickup the URL of the images related to each specific listing or retrieve the image and insert it into our database.