Chile/Patagonia travel

I will be taking a trip to Chile (flying into Santiago) and hope to get in the water around Vina Del Mar and Puerto Montt.  I don't feel like paying Delta $300 to destroy my board so I will look to buy a used one after I fly.  Does anyone know a good place to buy a board in-country or have any other tips/experience with Chile?   I have already heard the obvious info such as "bring a good wetsuit" and "hope you like going left".

Thanks,

TD