.I can't tell you how many clicks you need to close a deal! However, that being said I can tell you it works... You need to have the proper consultant and Conversion Tools in place
Well Nero...there are no guarantees in life as you know! However I will say that is the nice thing about PPC...you can adjust the traffic...to fit your needs!
Make sure you have a plan in place before starting. As of recently, it has been working great, but when we first started (1st month), it was a complete mess.