Setup basic vagrant/vbox env

gistfile1.rb

$apt_key = 'http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc'

file {'/etc/apt/sources.list.d/vargrant.conf':
  ensure  => file,
  content => "deb http://download.virtualbox.org/virtualbox/debian ${lsbdistcodename} contrib",
  notify  => Exec['apt-get-update'],  
  before  => Package['virtualbox-4.0'],
}

exec {'apt-key':
  command => "/usr/bin/wget -q -O $apt_key | /usr/bin/apt-key add -",
  unless  => "/usr/bin/apt-key list|/bin/grep -c oracle",
  notify  => Exec['apt-get-update'],
  before  => Package['virtualbox-4.0'],
}

exec {'apt-get-update':
  command     => '/usr/bin/apt-get update',
  refreshonly => true,
}

package{'virtualbox-4.0':
  ensure  => installed,
}

package{'vagrant':
  ensure    => installed,
  provider  => 'gem',
}

Put a hash-bang bin puppet at the top, chmod +x this guy and you're all set!