When it comes to Napoleonic ships, Langton and GHQ miniatures are some of the best you can get. In a small way, the the Sails of Glory miniatures look like larger versions of GHQ miniatures. I say larger because they are 1:1200 scale and Sails of Glory are 1:1000 scale. Not really sure if that makes a huge difference when it comes to the coastal bits and pieces Langton produces.
Any idea what their mail order service is like? Their website (http://www.rodlangton.com/napoleonic/frame.htm) looks like it hasn't been upgraded since the 17th century.