Extra Packages for Enterprise Linux (EPEL) v5 yum repository configuration
"EPEL is a volunteer-based community effort from the Fedora project to create a repository of high-quality add-on packages that complement the Fedora-based Red Hat Enterprise Linux (RHEL) and its compatible spinoffs such as CentOS or Scientific Linux."
As per the FAQ, install the epel repo file (and GPG key) with:
# rpm -Uvh http://download.fedoraproject.org/pub/epel/5/i386/epel-release-5-4.noarch.rpm
