I know this is the CentOS list. However, as there has been some interest in CentOS 6.0 (RHEL 6), I thought I'd share the news here. Scientific Linux 6 is based on RHEL 6 with add-ons for scientific computing. FWIW, the Admin tools etc. are pretty much the same as in RHEL, so are the base packages. Read more at <http://www.scientificlinux.org/distributions/6x/60/> -- Arun Khan