Well, you don't necessarily have to replace your yum.conf you can just add the following lines:
[livna-stable] name=Livna.org - Fedora Compatible Packages (stable) baseurl=http://rpm.livna.org/fedora/$releasever/$basearch/RPMS.stable http://livna.cat.pdx.edu/fedora/$releasever/$basearch/RPMS.stable #gpgcheck=1
[livna-unstable] name=Livna.org - Fedora Compatible Packages (unstable) baseurl=http://rpm.livna.org/fedora/$releasever/$basearch/RPMS.unstable http://livna.cat.pdx.edu/fedora/$releasever/$basearch/RPMS.unstable #gpgcheck=1
[livna-testing] name=Livna.org - Fedora Compatible Packages (testing) baseurl=http://rpm.livna.org/fedora/$releasever/$basearch/RPMS.testing http://livna.cat.pdx.edu/fedora/$releasever/$basearch/RPMS.testing #gpgcheck=1
Why do so many people (not just you Johnathan) recommend turning off GPG checks like this?
What's so hard about running:
# rpm --import http://rpm.livna.org/RPM-LIVNA-GPG-KEY
It only has to be done once...?
Given that several high-profile sites (e.g. sendmail, debian) have been compromised over the years and possibly trojaned packages uploaded, having GPG checks is a very sensible and easy to implement safeguard.
Paul.