EMAIL extract script needed

Need a script to extract email adresses from internet and list them in a text file: Required features are: a) Spider a website with all related subpages and return email adresses b) Search for a term (like "villas in tuscany") in google or yahoo, select first x results ( first 10, 50, 100) spider those sites and all related subpages and extract sitename and below all email adresses (only TLD required - to know which site) c) no duplicate records wanted d) way to exclude terms links like Partner, Resources, Links, .... e) Stop running quiery f) Must be fast - possibly also with an indication like x% completed. h) Some sites might be small but others huge with 50000 emails Script will be tested before bought No pre-payment - will be payed after sucessful testing. Not more then 10 days for testing. Budget around $100