diff --git a/.gitignore b/.gitignore
index 00c0b86e..77685543 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,5 @@
 coverage
 rdoc
 pkg
+.sass-cache
+*.gemspec
\ No newline at end of file
diff --git a/.gitmodules b/.gitmodules
index d612a279..3ce13bf3 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,6 @@
 [submodule "vendor/sinatra-maruku"]
 	path = vendor/sinatra-maruku
 	url = git://github.com/wbzyl/sinatra-maruku.git
+[submodule "vendor/rack-test"]
+	path = vendor/rack-test
+	url = git://github.com/brynary/rack-test.git
diff --git a/bin/mm-build b/bin/mm-build
index 80852c3f..606b9211 100755
--- a/bin/mm-build
+++ b/bin/mm-build
@@ -3,8 +3,8 @@
 # Require app
 require 'rubygems'
 require 'templater'
-require 'open-uri'
 require File.join(File.dirname(__FILE__), '..', 'lib', 'middleman')
+require File.join(File.dirname(__FILE__), '..', 'vendor', 'rack-test', 'lib', 'rack', 'test')
 
 module Generators
   extend Templater::Manifold
@@ -19,7 +19,7 @@ module Generators
     def self.template(name, *args, &block)
       return if args.first.include?('layout')
       return if File.basename(args.first)[0,1] == '_'
-
+      
       if (args[0] === args[1])
         newext = case File.extname(args.first)
         when '.haml', '.mab', '.maruku'
@@ -31,11 +31,12 @@ module Generators
         end
         args[1] = args[0].gsub(File.extname(args.first), newext).gsub('views/', '')
       end
-
+      
       super(name, *args, &block)
     end
 
     def self.file(name, *args, &block)
+      puts args.inspect
       args[1] = args[0].gsub('views/', '') if (args[0] === args[1])
       super(name, *args, &block)
     end
@@ -53,16 +54,16 @@ module Generators
   add :build, Builder
 end
 
-# Monkey-patch to use a dynamic renderer, not just ERb
+Middleman.set :root, Dir.pwd
+
+# Monkey-patch to use a dynamic renderer
 class Templater::Actions::Template
   def render
-    return ""
-    #request_path = destination.gsub(File.join(Dir.pwd, 'build'), "")
-    #Rack Handler
+    request_path = destination.gsub(File.join(Dir.pwd, 'build'), "")
+    browser = Rack::Test::Session.new(Rack::MockSession.new(Middleman))
+    browser.get(request_path)
+    browser.last_response.body
   end
 end
 
-# Start app
-#Middleman.run!(:root => Dir.pwd) do
-  Generators.run_cli(Dir.pwd, 'mm-build', 1,  %w(build --force).concat(ARGV))
-#end
\ No newline at end of file
+Generators.run_cli(Dir.pwd, 'mm-build', 1,  %w(build --force).concat(ARGV))
\ No newline at end of file
diff --git a/lib/middleman.rb b/lib/middleman.rb
index 2f7b4cb1..dce63b66 100644
--- a/lib/middleman.rb
+++ b/lib/middleman.rb
@@ -56,8 +56,10 @@ class Middleman < Sinatra::Base
         haml(template)
       elsif File.exists? File.join(options.views, "#{template}.maruku")
         maruku(template)
-      else
+      elsif File.exists? File.join(options.views, "#{template}.mab")
         markaby(template)
+      else
+        pass
       end
     elsif path.match /.css$/
       content_type 'text/css', :charset => 'utf-8'
diff --git a/spec/builder_spec.rb b/spec/builder_spec.rb
index 7a34845f..a23f7c91 100644
--- a/spec/builder_spec.rb
+++ b/spec/builder_spec.rb
@@ -20,18 +20,22 @@ describe "Builder" do
   
   it "should build markaby files" do
     File.exists?("#{@root_dir}/build/markaby.html").should be_true
+    File.read("#{@root_dir}/build/markaby.html").should include("<title>Hi Markaby</title>")
   end
   
   it "should build haml files" do
     File.exists?("#{@root_dir}/build/index.html").should be_true
+    File.read("#{@root_dir}/build/index.html").should include("<h1>Welcome</h1>")
   end
   
   it "should build maruku files" do
     File.exists?("#{@root_dir}/build/maruku.html").should be_true
+    File.read("#{@root_dir}/build/maruku.html").should include("<h1 class='header' id='hello_maruku'>Hello Maruku</h1>")
   end
   
   it "should build static files" do
     File.exists?("#{@root_dir}/build/static.html").should be_true
+    File.read("#{@root_dir}/build/static.html").should include("Static, no code!")
   end
 
   it "should build subdirectory files" do
@@ -40,6 +44,7 @@ describe "Builder" do
 
   it "should build sass files" do
     File.exists?("#{@root_dir}/build/stylesheets/site.css").should be_true
+    File.read("#{@root_dir}/build/stylesheets/site.css").should include("html, body, div, span, applet, object, iframe")
   end
 
   it "should build static css files" do
diff --git a/spec/fixtures/sample/views/markaby.mab b/spec/fixtures/sample/views/markaby.mab
index e69de29b..0e197f74 100644
--- a/spec/fixtures/sample/views/markaby.mab
+++ b/spec/fixtures/sample/views/markaby.mab
@@ -0,0 +1,5 @@
+mab.html do
+  head do
+    title "Hi Markaby"
+  end
+end
\ No newline at end of file
diff --git a/spec/middleman_spec.rb b/spec/middleman_spec.rb
deleted file mode 100644
index a22a6519..00000000
--- a/spec/middleman_spec.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-require File.expand_path(File.dirname(__FILE__) + '/spec_helper')
-
-describe "Middleman" do
-  it "fails" do
-    fail "hey buddy, you should probably rename this file and start specing for real"
-  end
-end
diff --git a/vendor/rack-test b/vendor/rack-test
new file mode 160000
index 00000000..6d8c25af
--- /dev/null
+++ b/vendor/rack-test
@@ -0,0 +1 @@
+Subproject commit 6d8c25af8592faf2efb3f5ab73b0219eadf30ea4