Maybe something from Trek's FX line or Specialized's Sirrus, which is a pretty popular model.

http://www.trekbikes.com/int/en/bikes/bike_path/

Looks like Trek has taken the prices off the website, but these start at just a few hundred dollars, I think.

http://www.specialized.com/bc/SBCBkM...=38462&eid=121

Giant also makes similar models.