I cut down my own trees (I own the place) with a bow saw. After seeing what the loggers did to a friend's property taking timber off it, I'd rather not call them in.
I get several deadfalls each winter, I'm still cleaning that up, then I take out about 2-3 mature trees each year and cut them into firewood. Unfortunately the woodstove in this house doesn't draw its air from outside the house, so it's more for show than for real heating. With energy prices rising, I should knock together a vent out of sheet metal and save myself some money. I've got 7-8 cords of wood just sitting around waiting for termites to move in (our winters are pretty mild, we usually only burned about 3-4 cords each winter at our old house with the real, working wood stove.)
I'd like to increase the number of trees I take this year, so I'm thinking of picking up an electric chainsaw for cutting up the timber once it's down. I used to own a gas chainsaw, but I gave it to a friend because I was spending more time maintaining it than using it.