There are a few other options. Any .40 S&W Steel 1911 can be converted to 10mm by either a barrel reaming or fitting a new barrel. I am thinking about one of the new Taurus 1911s in .40 when they come out. Also, EAA offers a Witness Match and Witness Hunter, each in 10mm. The Match, is, apparently, quite a pistol for the price.
That said, I think the Glock 20 has the best reputation overall in the 10mms.