post your comments so may other members will get an idea to select that which kind of keyword tool shoul be used, 1. google keyword tool 2. ovetrture keyword tool 3. wordtracker keyword tool
inventory.overture.com adwords.google.com you can install VRE tool bar i ll help you to find monthly search volume of a keyword nationwise.
I have used the tools you have mentioned, and others, but now I simply use these two tools. Keyword discovery first to find keywords that people are actualy searching for, and then Keywords database to find which are high paying keywords. Its quick, simple and free! http://www.keyworddiscovery.com/search.html http://www.keywordsdatabase.com/