Thanks for the advice.  I will be buying from a dealer.  This is the dealer I currently buy auto and lawnmower parts from (it is NAPA store and sells Stihl, Huskey).  I grew up cutting firewood and still occasionaly help my Dad.  I have always borrowed one of Dad's saws but I am tired of his cheap saws and figure I am pushing forty, time to quit borrowing his stuff.