Ubuntu AWS instance remote desktop with NX on OS X

export DEBIAN_FRONTEND=noninteractive
sudo -E apt-get update
sudo -E apt-get install -y ubuntu-desktop

sudo add-apt-repository ppa:freenx-team
sudo apt-get update
sudo aptitude install -y freenx

wget https://bugs.launchpad.net/freenx-server/+bug/576359/+attachment/1378450/+files/nxsetup.tar.gz
tar -xvf nxsetup.tar.gz
sudo cp nxsetup /usr/lib/nx/nxsetup
sudo /usr/lib/nx/nxsetup --install (answer 'Y')

Enable password auth for SSH - i.e. /etc/ssh/sshd_config
sudo /etc/init.d/ssh restart

sudo aptitude install gnome

Download and install the NoMachine Player for OS X

Connect to the NX server and play!