this shows bid prices and search volume estimates next to keywords (like the Google Traffic Estimator)
this shows your current page titles and keywords
this shows the % of organic and paid traffic going to a URL
For any keyword, the Google Search-based Keyword Tool will show up to 800 related keywords with cost and search volume estimates. This tool also works to show you 100 keywords related to a site, and if you own a website they will show you thousands of keywords that they think you could bid on which are not already in your account. In addition they show your search share of voice (via ads and organic search results) for keywords. This data is easy to export using a handy export button.
There are a variety of cool extra filters that can be applied on this tool, including...
minimum or maximum search volumes
bid price range
low, medium, or high competition
keyword in URL
combining URL and keywords as filters
keyword + general category
Using a variety of different combinations for these filters you can see many different sets of 800 keywords even within the same subset. Export these different lists a variety of times and you can quickly build a list of thousands of high value keywords.