I was about to buy a Silgranit sink when I got derailed by the whole granite/radon/radiation controversy. Since Silgranit is 80% granite and Blanco's 'helpful' customer service staff told me 'We have no information on radon and granite products.', I am looking for an alternative.

I want an undermount white sink that is easy to keep clean and in good condition. What other options are there? What do you like/not like?