Hi,
If you are looking for a really nice medium sized saw, consider a husqvarna Model 350 Chainsaw. 52cc 16-24" bars. It comes standard with an 18" and you can pick one up for about $300.-350.

I have the utmost confidence in the husqvarna chain saws. I have 4 of them and they can handle anything you can throw at them. I have had them all fall out of trees (1 fell out of my belt at about 45feet) but the keep going and going and going!!

The Echo C.S. 520 is also a good saw which is a bit more expensive than the husky but it is of equal size engine and can handle comparable sized bars!!

Still I prefer Husqvarna over ANY OTHER chain saw out there!!!

Hope this helps!!

Joe
J&R Landscaping