Go to a reputable Stihl Dealer, AND inquire about the extended warranty on purchase of Stihl oil.
I bought a Stihl MS 250 last fall, 18 inch bar, top of the line home use I believe, about $200 cheaper than a mid-line farm and ranch or commercial use saw. Hair less horsepower, little less torque, quite a bit lighter. And, I really couldn't see the extra expense for the amount of use I incurr with one. Unless you're planning on cutting a WHOLE LOTTA WOOD, it'll do everything you want to do.
http://www.stihlusa.com/products/chain-saws/homeowner-saws/
The dealer offered an extended warranty for purchase of a six pack of Stihl Ultra HD oil to go with it...
http://www.stihlusa.com/information/warranty-service-info/engine-oil-double-warranty/
And, you gotta have oil! Nothing requires you to purchase Stihl oil after that initial purchase, nothing requires you to use that oil in it honestly; you just buy a six pack of their Ultra HD oil, and double your warranty. Which is much better than purchasing a warranty that you never use, and getting nothing but a receipt for it. I kinda thought that one was a no-brainer!!
As for the saw itself, my dad's got one he bought several years ago, and it has proven tough as nails! His hired man has one just like it that he bought for his own use; it's been plenty dependable as well. I inquired of a buddy that used to cut pulpwood, removed problem trees, did storm cleanup, etc. and he said it wasn't as bad as his Husky, but he ran one just like it for years limbing, cutting smaller trees, and such, and it was one BAD A$$ little saw!!
Mine gave me a little grief when I first started using it, tended to overheat with hard use, and would shut down soon as you went into idle, then it was a pain to start until it cooled down. Checked carb setting in the owner's manual, broke out the carb adjustment screwdriver supplied with the saw, and adjusted the carb. Likewise, put the 3/4 gallon of old mixed gas that was in my can, (was only a few months old, not even a hint of stale 2 stroke smell to it), in the tank on my mule to add a little upper cylinder lubrication and get rid of it, and mixed a new can of gas using the Stihl oil.
Haven't had a single problem since, it'll work you death without a single hiccup, cough, spit, or sputter! Starts much better too. While I was leaning toward old gas, or a piece of trash out the can of old gas, I honestly think the technician set the carb wrong when he set it up at the shop. The manual offered two settings, I checked to see which one it was set up for and finding it being the leaner of the two factory settings, I opted for the other. Has run great every since!!