Well, I did some more investigating and spent some time at bikeforums, and got some more suggestions. So far, the most promising look like the Adidas Samba (an indoor soccer shoe) and the Specialized Sonoma or Sonoma 2. Other possibilities include Adidas Cyclone or Shimano MP56.

Now I need to find a local shop that stocks any of these, so I can see how the fit is.

Rebeccah