Assume that I purchase a well sorted M20J.  What can I assume in per hour operating costs?  I know that there are many variables, but I would like to hear some real work examples.  Maybe look at what you had in total expenses for 2009 or the past 12 months and then divide that by your annual hours.  There was a similar thread on the Beechtalk message board and it was very interesting for folks like me who have not entered the world of airplane ownership just yet.  Thanks.