proxy rotator / search engine scraper

implement a php proxy rotator script to include at least 30 servers that can scrape google results - *you* need to provide the proxy server list as well. also implement code to grab google results via the scraping/API and display on my site (no ads). you will need to integrate with the search function on my site (simple search box tick the checkboxes of which search engines you want to use - already implemented for search via yahoo web services and another search engine (mojeek) via XML APIs)