This is an age old question, but I'm always in need of more keywords. Besides scraping, your own analytics, and sites like wordze, keywordspy, keycompete, etc; where do you get your keywords?
In my opinion this is the best software for keywords, keywords are updated daily on that software: http://www.goodkeywords.com/
Here is my list of top keywords: turnkey keychain keyring chicken keyev The last one is really good, only 9 competition! http://www.google.com/search?hl=en&q=chicken+keyev&btnG=Search