Index: engines/rails_extensions/dependencies.rb
===================================================================
--- engines/rails_extensions/dependencies.rb	(revision 615)
+++ engines/rails_extensions/dependencies.rb	(working copy)
@@ -98,17 +98,17 @@
     # try and load the plugin code first
     # can't use model, as there's nothing in the name to indicate that the file is a 'model' file
     # rather than a library or anything else.
-    ['controller', 'helper'].each do |file_type| 
+    Engines.file_types.each do |file_type|
       # if we recognise this type
       # (this regexp splits out the module/filename from any instances of app/#{type}, so that
       #  modules are still respected.)
-      if file_name =~ /^(.*app\/#{file_type}s\/)?(.*_#{file_type})(\.rb)?$/
+      if file_name =~ /^(.*app\/#{file_type.pluralize}\/)?(.*_#{file_type})(\.rb)?$/
         base_name = $2
         # ... go through the plugins from first started to last, so that
         # code with a high precedence (started later) will override lower precedence
         # implementations
         Rails.plugins.each do |plugin|
-          plugin_file_name = File.expand_path(File.join(plugin.root, 'app', "#{file_type}s", base_name))
+          plugin_file_name = File.expand_path(File.join(plugin.root, 'app', file_type.pluralize, base_name))
           logger.debug("checking plugin '#{plugin.name}' for '#{base_name}'")
           if File.file?("#{plugin_file_name}.rb")
             logger.debug("==> loading from plugin '#{plugin.name}'")
@@ -123,7 +123,7 @@
           logger.debug("loading from application disabled.")
         else
           # Ensure we are only loading from the /app directory at this point
-          app_file_name = File.join(RAILS_ROOT, 'app', "#{file_type}s", "#{base_name}")
+          app_file_name = File.join(RAILS_ROOT, 'app', file_type.pluralize, "#{base_name}")
           if File.file?("#{app_file_name}.rb")
             logger.debug("loading from application: #{base_name}")
             file_loaded = true if require_or_load_without_engine_additions(app_file_name, const_path)
@@ -140,4 +140,4 @@
   end
 end
 
-::Dependencies.send(:include, Engines::RailsExtensions::Dependencies)
\ No newline at end of file
+::Dependencies.send(:include, Engines::RailsExtensions::Dependencies)
Index: engines.rb
===================================================================
--- engines.rb	(revision 615)
+++ engines.rb	(working copy)
@@ -84,6 +84,10 @@
   # A reference to the current Rails::Initializer instance
   mattr_accessor :rails_initializer
   
+  # The types of files that can be auto-loaded.  Classes are expected to end
+  # with this name and files should end with an underscore and this name
+  mattr_accessor :file_types
+  self.file_types = ['controller', 'helper']
   
   #--
   # These attributes control the behaviour of the engines extensions
@@ -320,4 +324,4 @@
       end
     end  
   end
-end
\ No newline at end of file
+end