Re: AdWords Question
Stephanie - are you currently using negative keyword phrases to weed out rental related keywords? Are you using broad, phrase or exact match (combination?) - have you done any search query reports to find out where these rental clicks are coming from etc?
Adding operators such as "for sale" is always a good idea, the more specific, generally the better converting - but as you say, it's a balance. The keywords you mention are not historically all that bad in my circles so perhaps you have not optimized your Google adwords correctly.
Starting LEC 7 soon but it won't be called LEC 7 - LEC 2012 coming soon!