Keyword research is perhaps the easiest SEO task you can get started on. A free tool to try with a some real nice features is Wordpot.com. It uses a similar database like Wordtracker, KeywordDiscovery and other keyword tools and pulls searches from different search engines.
Wordpot offers both Exact Daily and Total Daily searches and I think you will find the results to be very much like the other popular Keyword Tools. Wordpot is free and a great little keyword research tool.