Thank you so much for the detailed and accurate responses. While your answers were very insightful --and really answered some questions I had not even known to ask-- I was really just trying to see if SEOmoz had a tool similar to HubSpot's that does all of that longtail research for you. I'm unsure if anybody is familiar with the tool I am referencing, but put simply, you enter the root and it returns a gambit of longtails that you should be targeting (calculated by volume of search and level of competition).
