Thanks for all the answers folks,
The only option buying international is the kindle (basic), touch or kindle keyboard. The latter is the only one with free 3g but I only use that for buying books. I guess I can use wifi or a computer almost as easy. Audio support is not an issue for me, I only use it for reading and I feel kindle 2 is a bit on the heavy side. Looks like kindle 4 has more screen.
I think I will try to look for a nice second hand kindle 4, the price here is much more than 89 USD (approx 144 USD), almost twice the price
That goes for all the kindles by the way..ebay here I come
Thanks for your opinions