As I do a lot of keyword research for my clients, I've found the SEOmoz Keyword Difficulty tool a great way to dig deeper in the competitive data for important keywords, whenever I am at the point of choosing between a smaller number of keywords.
However, in some cases I would rather have a quick idea of how competitive a large list of keywords is (for example 1000+). As the Keyword Difficulty tool has a limit of 5 per run and 300 per day, I am looking for a technique or tool to run a list of keywords and get an idea of competitiveness for each keyword.
Thanks for any suggestions!