Not certain if anyone else is using this or not but I use Domain Analyzer to find good names with certain keywords. I am not going to post a link to the site where you can download the free software but you can simply google "Domain Analyzer" and you will find it. Anyone else using this?
That will be a handy tool for several items of research. You can take some of those sites and enter the url's into to some Google tools to glean a lot of information about competition.