Hi... If you check my portfolio, you will see that I have done a lot of scraping... I do not have some special tools (they are all some console tools for once execution), except ONE... it is advanced Yellow Pages .COM tool...
It has the following features: It can scrap by ANY keyword and any US State (or ALL). It has feature to filter if there is no Street Address (very useful to avoid duplicates). It has feature to set a delay between requests, which will make you avoid bans from the server (especially if you are outside USA)...
It has RESUME feature...
AND the most important, it has CUSTOMIZABLE export, with selection of separator, fields, and text qualifier.... It's final price is 600 USD (not negotiable)... (JUST FOR YOUR PLANNING: The tool is tied to IP address, and it is transferable at any time... but it doesn't allow you multiple copies distributed on multiple machines)
Also, I can create you any advanced scraping option you want on demand, even for lower price if you allow me to sell it to third parties...