I, too, wouldn't recommend any of the Brazilian makes. Spend a tad more and get a CZ, if you insist on a new gun. If not, have a look at the higher-priced SxS's on Trade Ex ($500 range - Merkels, Sauers, Simpsons).
You need to be sure that any used gun you buy has 2 3/4" chambers, or longer. Many of the guns on Trade Ex are 2 1/2" chambered. There's nothing wrong with 2 1/2" chambers, but the shells are exceedingly hard to find and your only other choice is to load your own. If you contact Anthony at Trade EX, he'll make sure you get 2 3/4".