Hi folks, I currently have a Stihl MS250 with a 16" bar. It is a great little saw and should work fine for a large portion of my upcoming needs. (We just installed a Fireview this winter. I haven't cut wood in years but when I was a teen we heated my parents' house with a Buderus wood boiler, and used a big old Husky with a 24" bar.) However, a local tree service is going to be calling when they have free wood available, and there will be times when I think I might need a bigger saw for some trunks. I guess I have two questions: Would it be worth buying an 18" bar for the MS250, or should I just invest in another saw? For instance, locally on Craigslist there is a Stihl 038 AV Super electronic quickstop with 20" Bar for $250. Any thoughts on the Stihl 038s? Keep looking?