I bought a saw, and this is my experience:
So, it seems like the common denominator here is to have a good dealer. That being said, I decided against Tractor Supply, Lowe's, and Home Depot and went to a local dealer, R White Equipment in Nashua, NH. He sells all three companies I was looking at: Husky, Stihl, and Jonsered.
First off, it was a busy morning with a few people waiting before and after me. When it was my turn, he said to the others waiting that it might be a while since I had a lot of questions--I liked him right off the bat as he was willing to take his time to make sure I got the right information, even though it was busy.
I explained my situation (see above) and told him I was looking at the MS290 and Rancher 455. He promptly explained that those were bad choices for me. Because of weight and size (ratio?), and what I would be doing with the saw, I would be better off with a smaller unit. He pulled down the two to show me and then said, "this is the saw for you." It was an MS250 (recommended above) and it definitely felt light and nimble compared to the others.
What I liked about the guy was the confidence in his suggestion--I'm sick of wishy-washy people. In any case, I liked it more that he showed me everything about the saw: the air filter, controls, techniques, how to put on the bar and chain, how to tighten the chain, how to sharpen the chain, etc. He spent at least a 1/2 hour showing me the saw. At that point, I wasn't sure about cost but I knew I wanted to buy from this person.
In any case, I paid the man: MS250 with case, manual, and wrench thingie; two chains; file; 1 gallon bar oil; a filled up tank of gas and bar oil, and a whole lot of knowledge: $370.
But we're not done. After he takes my money, he begins to fill out the warranty card for me and put a sticker on the unit so I know who to call with questions. I begin to pick up my stuff, but he says "where ya going?" He grabs the saw, makes sure all the screws are tightened, the bar and chain are snug, that there's gas and oil, and shows me how to start it. He then runs it for a few minutes to make sure the oiling system works and the idle is ok. After he adjusts the idle and re-starts it a couple times, he hands it over and says "have fun, and thanks for your business."
I grab my stuff, the proud owner of a new Stihl saw (talk about romancing the vendor), and begin to walk out as he calls "Oh, and stop by sometime during the week--we can talk about your saw and I'll answer any questions that come up. Sorry I was a little rushed." This after almost an hour of his time.
It was so nice to have what is so rare, but should be the norm, in purchasing experiences, and I was reminded of an old sales quote: "Quality is remembered long after the price is forgotten."
I promptly took my saw home and cut the ba-jesus outta that felled maple in my yard. Love the saw, and though it may not be the biggest, most powerful one I could buy, and I may not have gotten the most amazing deal, I've got the saw that works for me, the knowledge on how to use it to its potential, and the comfort of a supportive dealer. To me, those are priceless.
Thanks for your help everyone,
S