[Agnafl]

I know this question has been asked a 100 times, but I will ask it again looking for more/different answers.

What software/program is everyone using to do keyword research on? I have used overture, digitalpoint, and the tools on seobook. They are pretty good but I often find that the info is skewed or not available. Does anyone use a service that you have to pay for and have they found it to be worth the $$.

Matt