The problem with travelling in Chile is that it is so damn long and the best bits are strung out along its entire length.
I travelled to Chile once a few years ago and made the mistake of not making all my arrangements before going there. Although this might seem like a more adventurous option, the problem is, that if you haven't got months to spend, that you will end up not seeing everything that you want to.
I was therefore left with a strong desire to return to Chile on a more organised trip. This time I did my research, reading articles and the like and I found Optimundo, a company that specialises in tailor made trips to Chile.
I can't recommend contacting Optimundo enough, if you are planning a trip to this amazing country. They put together exactly the trip that I wanted to take my family on and once there it went like clockwork. Everything: friendly guides, good hotels, interesting tours, and most importantly we got to see all the places on my wish list - the icebergs and glaciers of Patagonia; the volcanoes and lakes in the lake district; the dolphins and penguins; the dramatic desert landscapes.
So my tip is, if you haven't got heaps of time, get a detailed itinerary planned out before you go.