Would also recommend the Stihl, if you decide to go the Echo or the Husky check with your local shop for parts availability. Echo and Husky are now sold at big box stores and little shops usually don't like working on big box cast offs. I know that my favorite shop stopped stocking and servicing echo products when home depot started selling echo's.
Also pick up a spare chain, if the bar on your new saw can be flipped when you go though a jug of fuel swap chains and flip the bar. Clean, sharpen, and oil the chain before storing it. When you wear out the chains it is time to replace the bar and the drive sprocket. You should be able to get years out of the chains unless you have a tree cutting business.
I also recommend the premium gas and the premium mix oil with the fuel stabilizer added in to it. Sharpen my own chains with a file, if you are swapping chains take the dull one to your favorite lawn company and have them sharpened. You will like the better quality chains, years ago i cut the head off of a 16 penny nail that was grown about 6" into a pine tree (if i had cut half an inch higher i would have missed it), it did dull the chain. Took the chain in and had it sharpened, didn't want to file that much, and i am still using that chain.
Most importantly remember the rule. Don't let anybody borrow the girlfriend, the Stihl, or the Kubota. And not necessarily in that order.