I have a new chain saw on Santa's list this year, and I need help picking the corect model for my needs. I will be cutting approx. 4 to 5 cords per year, and do not mind payng a little bit extra if it will hang in there for the long haul, but I also do not want to waste my money on overkill. I know I want a Stihl, my only question is what model do you guys think will be right for me?