Which tools do you prefer to utilize for creating, managing and optimizing your PPC campaigns? Just wondering what other webmasters are using and what might be the most robust for real estate.

On the topic, I highly suggest that anyone who is running a real estate PPC campaign should check out the Real Estate Keyword Tool that I developed (sorry for the shameless plug). It allows you to specify your location, specialties, affiliations, types of services offered, types of homes you specialize in etc and produces a list of keywords that can be utilized for Google AdWords or any other PPC campaign. Once search can produce up to 75,000 keyword results. That's a pretty thorough long-tail list.