I'd say that one's a little advanced and would be confusing for newbies.
Larwee has a good list going with Keyword tools.
Keyword selection tools
Google, Overture and Wordtracker are probably the easiest
basic free tools just to get keyword query counts.
I like the Digital Point keyword tool cuz it shows Wordtracker and Overture results on the same page.
Free Keyword Suggestion Tool (Wordtracker Suggestion Tool & Overture Bid Tool Combined) & Keyword Generator