Hi

SEO Elite is a great software and one that has made me a lot of money. Also check out seoequalizer.com as they will both get the job done for you.

They key to success with any tools is to only use it as a tool, there is nothing that works any better then the brain.

Keyword selection is more of and art then science and you get really good at it by just doing it.

I know this is not the answer you were looking for.

Here are some free videos that I have that will kind give you a better idea about keyword selection.

http://www.seocodebreaker.com/keywordtool/

These are about 1 1/2 years old so keep that in mind.

Thanks
Charles