CPA Mailing List

I need a mailing list in either csv or access data format. The list consists of accounting firms in the United States. I don't care how you get it or where it came from, however I would suggest one possible way is to write a scraper to get it from Superpages, but not sure how you'd do that. There may be other locations on the Internet where the data can be found. There are probably over 100,000 names & EMAILS in the list. I need name of the firm, address, city, state, zipcode, and most importantly EMAIL, (phone and contact name) if possible.