I just finished the initial packaging of ClusterLabs Hawk 0.5.2 Cluster web gui (https://github.com/ClusterLabs/hawk) and it is available from my repository:

add the following to your /etc/apt/sources.list or /etc/apt/sources.list.d/itadmins

deb http://packages.itadmins.net/debian squeeze main
deb-src http://packages.itadmins.net/debian squeeze main

then execute the following commands:

wget -O - http://packages.itadmins.net/debian/itadmins_archive_keyring.gpg |apt-key add -
apt-get update
apt-get install hawk