Mark will do fine with a chain saw. He can still type can't he? Give him time. I figure if he survives the first 6-hours of cutting he is set for life.
Mark, buy good gloves, kevlar chaps and have a ball. Visit a real chain saw shop and take a look at what you missed out on and they can probably show you around your new tool and help you with repairs. Home Depot was NOT the place to buy a chainsaw. You won't find Husqvarna or Stihl at HD.