Populating ASP.NET MVC DropDownList

<%= Html.DropDownListFor(c => c.Client.StateProvince.Id, 
                              new SelectList(Model.StateProvinces, 
                                             "id", 
                                             "Name", 
                                             Model.Client.StateProvince), 
                              "-- Select State --")%>

This does it.

Hope this helps someone else.

~Lee