Axe Sharpening

[Tartar Horde]

I really need to sort myself out a good axe as i don't possess one!!! most of the wood processing I need to do can be done with a Machete, but I do feel the need to buy one I just can't decide what type of Axe would cover most bases, and would appreciate any feedback. I can't see myself having to cut down a tree but you never know do you. Would it be more sensible to buy a range of axes, or is there such a thing as a "universal" axe that will suit most applications?
The only experience I have had with Axes is handling and using variouse types of Viking/Saxon/Frankish weapons and they are not designed to be used on wood, and would look ridiculous chopping firewood