Frigidaire
Zanussi and Frigidaire are both owned by Electrolux, which claims in its ads to be the largest manufacturer of front loader machines in the world. If you take the sum total of its divisions (Electrolux, Frigidaire, Zanussi), the claim is believable. The 530 has manual dial controls rather than electronic button controls. Also, it is standard US size, 27 inches wide. The drum capacity is about 3.1 cu ft, vs 2.0-2.2 for European machines, which typically are only 24 inches wide. So the 530 is larger than the Zanussi you see, but probably of similar quality.
The retailer should know about the rebates. In my area, the websites of the water district and gas company have information about rebates, as well as lists of which models qualify. In parts of the country without water shortages, they may not offer water rebates, but I imagine all gas utility companies would offer incentives to buy front loaders, which use about 2/3 less water and therefore less hot water.
The new generation of Frigidaire front loaders has not been on the market long enough (only about five years) to have a reliable database of how long the machines last. Five years from now, if the machines last there will be a body of ten-year owners who can vouchsafe for the models. I own the 2140 and it was released a little over two years ago. One member here has posted about owning the machine for two years, so far no problems. I bought my 2140 in March 2006 and so far it has given excellent service.