diff --git a/bin/mm-build b/bin/mm-build
index b135c0878..9036bf7ad 100755
--- a/bin/mm-build
+++ b/bin/mm-build
@@ -4,10 +4,6 @@ ENV['MM_ENV'] = "build"
 
 # Require app
 require File.join(File.dirname(__FILE__), "..", "lib", "middleman")
-require 'middleman/builder'
-
-# Initialize server once so features are loaded
-Middleman::Server.new
 
-# Middleman::ThorBuilder.source_root(Dir.pwd)
-Middleman::Builder.start
+require 'middleman/builder'
+Middleman::Builder.start
\ No newline at end of file
diff --git a/lib/middleman/builder.rb b/lib/middleman/builder.rb
index cc7bc02cb..9bd400605 100644
--- a/lib/middleman/builder.rb
+++ b/lib/middleman/builder.rb
@@ -12,7 +12,7 @@ def tilt_template(source, *args, &block)
       source  = File.expand_path(find_in_source_paths(source.to_s))
       context = instance_eval('binding')
 
-      @@rack_test ||= Rack::Test::Session.new(Rack::MockSession.new(Middleman::Server))
+      @@rack_test ||= ::Rack::Test::Session.new(::Rack::MockSession.new(Middleman::Server))
 
       create_file destination, nil, config do
         # The default render just requests the page over Rack and writes the response
@@ -28,6 +28,7 @@ class Builder < Thor::Group
     include Middleman::ThorActions
     
     def initialize(*args)
+      Middleman::Server.new
       ::Tilt.mappings.keys << "js"
       super
     end
@@ -46,6 +47,17 @@ def build_static_files
     def build_dynamic_files
       action Directory.new(self, Middleman::Server.views, Middleman::Server.build_dir)
     end
+    
+    @@hooks = {}
+    def self.after_run(name, &block)
+      @@hooks[name] = block
+    end
+    
+    def run_hooks
+      @@hooks.each do |name, proc|
+        instance_eval(&proc)
+      end
+    end
   end
   
   class Directory < ::Thor::Actions::EmptyDirectory
diff --git a/lib/middleman/features.rb b/lib/middleman/features.rb
index 999094137..364c4a416 100644
--- a/lib/middleman/features.rb
+++ b/lib/middleman/features.rb
@@ -8,7 +8,7 @@ module Middleman::Features
   autoload :MinifyCss,           "middleman/features/minify_css"
   autoload :MinifyJavascript,    "middleman/features/minify_javascript"
   autoload :Slickmap,            "middleman/features/slickmap"
-  autoload :SmushPNGs,           "middleman/features/smush_pngs"
+  autoload :SmushPngs,           "middleman/features/smush_pngs"
   autoload :CodeRay,             "middleman/features/code_ray"
   autoload :Lorem,               "middleman/features/lorem"
   # autoload :LiveReload,          "middleman/features/live_reload"
diff --git a/lib/middleman/features/smush_pngs.rb b/lib/middleman/features/smush_pngs.rb
index aceba22b2..ab0e28559 100644
--- a/lib/middleman/features/smush_pngs.rb
+++ b/lib/middleman/features/smush_pngs.rb
@@ -1,37 +1,47 @@
-module Middleman::Features::SmushPNGs
-  class << self
-    def registered(app)
-      require "middleman/builder"
-
-      app.alias_method  :pre_smush_after_run, :after_run
-      app.define_method :after_run do
-        pre_smush_after_run
-        smush_dir = File.join(Middleman::Server.build_dir, Middleman::Server.images_dir)
+module Middleman::Features::SmushPngs
+  module ThorActions
+    def smush_pngs
+      # Read cache
+      cache_file = File.join(Middleman::Server.root, ".smush-cache")
+      cache_data = if File.exists?(cache_file)
+        Marshal.restore(File.read(cache_file))
+      else
+        {}
+      end
+    
+      smush_dir = File.join(Middleman::Server.build_dir, Middleman::Server.images_dir)
       
-        # Read cache
-        cache_file = File.join(Middleman::Server.root, ".smush-cache")
-        cache_data = if File.exists?(cache_file)
-          Marshal.restore(File.read(cache_file))
-        else
-          {}
-        end
+      files = ::Smusher.class_eval do
+        images_in_folder(smush_dir)
+      end
       
-        require "smusher"
-        require "json/pure"
+      files.each do |file|
         ::Smusher.class_eval do
-          images_in_folder(smush_dir).each do |file|
-            original_file_size = size(file)
-            return if original_file_size.zero?
-            return if cache_data[file] && cache_data[file] == original_file_size
-
-            with_logging(file, true) do
-              write_optimized_data(file)
-              cache_data[file] = size(file) # Add or update cache
-              File.open(cache_file, "w") { |f| f.write Marshal.dump(cache_data) } # Write cache
-              say "<%= color('#{"[SMUSHED]".rjust(12)}', :yellow) %>  " + file.gsub(Middleman::Server.build_dir+"/", '')
-            end
+          original_file_size = size(file)
+          return if original_file_size.zero?
+          return if cache_data[file] && cache_data[file] == original_file_size
+          
+          with_logging(file, true) do
+            write_optimized_data(file)
+            cache_data[file] = size(file) # Add or update cache
+            File.open(cache_file, "w") { |f| f.write Marshal.dump(cache_data) } # Write cache
           end
         end
+          
+        say_status :smushed, file.gsub(Middleman::Server.build_dir+"/", "")
+      end
+    end
+  end
+  
+  class << self
+    def registered(app)
+      require "middleman/builder"   
+      require "smusher"
+      require "json/pure"
+
+      Middleman::Builder.send :include, ThorActions
+      Middleman::Builder.after_run "smush_pngs" do
+        smush_pngs
       end
     end
   end
diff --git a/lib/middleman/version.rb b/lib/middleman/version.rb
index 6e2847fd9..ed7daeac8 100644
--- a/lib/middleman/version.rb
+++ b/lib/middleman/version.rb
@@ -1,3 +1,3 @@
 module Middleman
-  VERSION = "1.1.0.beta.1"
+  VERSION = "1.1.0.beta.2"
 end