diff --git a/Gemfile b/Gemfile
index e9316374d..787cd7ccb 100644
--- a/Gemfile
+++ b/Gemfile
@@ -12,46 +12,12 @@ end
 
 ### dev dependencies
 gem "rake"
-gem "cucumber", "1.0.0"
+gem "cucumber", "1.0.1"
 gem "aruba", "0.4.2"
-gem "nokogiri", "1.4.4"
+gem "nokogiri", "1.5.0"
 
 platforms :jruby do
   gem "jruby-openssl"
 end
 
-group :development do
-  gem "rcov", "0.9.9", :platforms => :mri
-  gem "relish", "~> 0.5.0"
-  gem "guard-rspec", "0.1.9"
-  gem "growl", "1.0.3"
-
-  platforms :mri_18 do
-    gem 'ruby-debug'
-  end
-
-  platforms :mri_19 do
-    gem 'ruby-debug19', '~> 0.11.6'
-    if RUBY_VERSION == '1.9.3' && !ENV['TRAVIS']
-      if `gem list ruby-debug-base19` =~ /0\.11\.26/
-        gem 'ruby-debug-base19', '0.11.26'
-      else
-        warn "Download and install ruby-debug-base19-0.11.26 from http://rubyforge.org/frs/shownotes.php?release_id=46303"
-      end
-
-      if `gem list linecache19` =~ /0\.5\.13/
-        gem 'linecache19', '0.5.13'
-      else
-        warn "Download and install linecache19-0.5.13 from http://rubyforge.org/frs/download.php/75414/linecache19-0.5.13.gem"
-      end
-    else
-      gem 'ruby-debug-base19', '~> 0.11.25'
-      gem 'linecache19',       '~> 0.5.12'
-    end
-  end
-
-  platforms :mri_18, :mri_19 do
-    gem "rb-fsevent", "~> 0.3.9"
-    gem "ruby-prof", "~> 0.9.2"
-  end
-end
+eval File.read('Gemfile-custom') if File.exist?('Gemfile-custom')
diff --git a/Gemfile-custom b/Gemfile-custom
new file mode 100644
index 000000000..8fa436497
--- /dev/null
+++ b/Gemfile-custom
@@ -0,0 +1,36 @@
+group :development do
+  gem 'interactive_rspec'
+  gem 'yard'
+  gem "relish", "~> 0.5.0"
+  gem "guard-rspec", "0.5.0"
+  gem "growl", "1.0.3"
+  gem "spork", "0.9.0.rc9"
+
+  platforms :mri_18, :jruby do
+    gem "rcov", "0.9.10"
+  end
+
+  platforms :mri_18 do
+    gem 'ruby-debug'
+  end
+
+  platforms :mri_19 do
+    case RUBY_VERSION
+    when '1.9.2'
+      gem 'ruby-debug19',      '0.11.6'
+      gem 'ruby-debug-base19', '0.11.25'
+      gem 'linecache19',       '0.5.12'
+    when '1.9.3'
+      # NOTE - see http://blog.wyeworks.com/2011/11/1/ruby-1-9-3-and-ruby-debug
+      # for help setting up ruby-debug19 on ruby 1.9.3
+      gem 'ruby-debug19',      '0.11.6'
+      gem 'ruby-debug-base19', '0.11.26'
+      gem 'linecache19',       '0.5.13'
+    end
+  end
+
+  platforms :mri_18, :mri_19 do
+    gem "rb-fsevent", "~> 0.4.3.1"
+    gem "ruby-prof", "~> 0.10.0"
+  end
+end