Thanks very much for all of the responses.

I've changed the SCL-LAX-BOS legs to SCL-JFK-BOS. Not optimal mileage option (DFW would probably have been), but I wanted to fly LanChile. However, it still meets my goal (barely) of qualifying me for AA Platinum status for 2004 (a substantial part of the trip will be in 2003).

RichLond -
I would be flying in Economy! However, I will probably end up trying to upgrade some of the segments. I will be putting all of the miles with AA except for the IB and CX flights where it appears that QF would be the best bet.

Thanks again for everyone's input and I will post the response from the rate people - positive or negative - when I receive it.