mowoodchopper
Polar Bear
I would consider the husky 450 instead of the 455. It has .3 hp less but also is .9lbs less. I am guessing that the .3hp could be gained by a muffler mod.
That being said I would also check dolmar. I think the 5100 would be exactly what you would need. I couldn't find a local dealer untill after I had made my saw puchase but here is the link to the dealer locator.
http://www.dolmarpowerproducts.com/contact/dealer_locator/usa_dealers.html
for sure man take the 450 over the 455!