Keyword Spy

I know that keyword spy is probably not the most black hat tool in the box and that the direct profit from it and using it will be zero but I am interested (as I still have a job) in getting hold of something like this for free. Something that can let me see which search terms other sites (competition) get traffic from naturally.

I know its not that useful when you know what you are doing but I think that I could make good use of the information to impress fellow marketing "experts" and make myself look a little more indispensable.

Thanks for reading

I just bought a 1 month subscription because I wanted to see their new Affiliate reports which shows the top affiliates and offers on a few networks. Not worth it in my opinion...
As for keywords, its great for looking at high converting ad copy as well as top keywords since the biggest acia and colon cleanse type sites have thousands of keywords.
If I had a large chunk of money to spend on PPC, Keywordspy would definitely be the tool I would use but for just plain keyword research, I would say save your money and download the cracked copy of Market Samurai in downloads and see what you can get with that.
Good Luck