Following hobodave's excellent answer to this question - Upgrade Centos 5 tot PHP 5.2 or 5.3 [recommended way?] - I'm just wondering how I should set up my Yum Priorities so that IUS takes precedent over packages in the CentOS repos. I'm unsure of which repo does what (although intuition tells me that the Base repo is fairly important, so I've set that to priority=1).
Additionally, I use Webmin/ Virtualmin. Am I best setting up the IUS repos, Yum Priorities and installing PHP/ MySQL prior to installing Virtualmin?