Anyone can chop a tree down,it would be like item interaction sort of thing. Now chopping down a tree gives 5 planks of wood.
You get to see where the tree will fall as well to crush an unfreindly orc or so....
Now there would be this new sort of skill called construction.
I really like this idea of tree chopping. I'd like to add something to this too. Besides chopping trees and crushing orcs with them, I was thinking we should alseo be able to make bows with them. E.G. all the character needs is a knife, a chopping axe and a string (say bought from a store). And this is where the skill of bow making comes in. The character then makes a bow, its power and other properties (recuperation time, abilities, graphics) depending on the characters skill level.