I know some of the A320's have gone to TAM of Brazil, because they are being replaced with their new B738's. There was a note about it in, I think, Airliner World.
And I think SAA has ordered their 732's from Lan Chile, but will supposedly replace them with 738's. It's definately not a typo, SAA are full of 732's, and there are no 752's in SAA's fleet. But come to think of it, why hasn't SAA got any 757's? They could use them on the "Golden triangle" route, right?
Regards - Tom