prepending and appending to the view search paths in rails3

add_view_paths.rb

# throw something like this in an initializer
ActionController::Base.class_eval do
  self.prepend_view_path "first/search/here"
  # then the defaults (app/views/*)
  self.append_view_path  "then/search/here"
end

# an example, say you want a theme, and the name is stored in App.theme_name?
ActionController::Base.class_eval do
  self.prepend_view_path "themes/#{App.theme_name}"
end