using different box, and adjusting the use of arrays with packages

Vagrantfile

@@ -1,6 +1,6 @@
-box      = 'fadenb/ubnt-quantal-puppet3'
+box      = 'dhoppe/ubuntu-12.04-amd64'
 hostname = 'dev'
-ram      = '4028'
+ram      = '2048'
 VAGRANTFILE_API_VERSION = "2"
 
 Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|

puppet/manifests/devPackages.pp

@@ -1,10 +1,9 @@
 class devPackages {
-	$Packages = ['cowsay', 'ruby', 'nodejs', 'irssi', 'git']
+	$Packages = ['cowsay', 'ruby', 'rubygems', 'nodejs', 'irssi', 'git']
   
 
-  package { "DevPackages": 
-  name=>$Packages,
+  package { $Packages: 
   ensure => "installed",
-  require => Exec["apt-get update"]
+  require => Exec['apt-get update']
   }
 }

puppet/manifests/monoDevelop.pp

@@ -1,7 +1,7 @@
 include apt
 class monoDevelop {  
 
-	apt::ppa {"ppa:ermshiperete/monodevelop":} -> Exec["apt-get update"] -> package { "monoDevelop" : 
+	apt::ppa {"ppa:ermshiperete/monodevelop":} -> Exec['apt-get update'] -> package { "monoDevelop" : 
   name=>"monodevelop-4.0",
   ensure => "installed"
   }

puppet/manifests/ubuntuDesktop.pp

@@ -2,9 +2,8 @@ class ubuntuDesktop {
 	$UbuntuDesktop = ['gdm', 'ubuntu-desktop']
   
 
-  package { "UbuntuDesktopPackages" : 
-  name=>$UbuntuDesktop,
+  package { $UbuntuDesktop : 
   ensure => "installed",
-  require => Exec["apt-get update"]
+  require => Exec['apt-get update']
   }
 }