I'm a bit suspicious of Redhat myself - I personally see them as the new Microsoft. The fact Redhat are sponsoring Fedora makes me suspicious and good enough reason not to use that distro.
I modestly suggest that you also have a look at Debian. www.debian.org A number of hams are Debian developers, and there's even a 'hamradio' section in the archive. The 'sarge' version is nearing release and would be a good place to start.
I like the Debian too, although it's not as easy to set up as Redhat. As you say there is a lot of ham stuff. I'm using Debian on the machine I'm sending this from.
73 - Bdale, KB0G a former Debian Project Leader, among other things...
-- Dr. David Kirkby PhD CEng MIEE Senior Research Fellow Department of Medical Physics University College London 11-20 Capper St London WC1E 6JA Tel: 020 7679 0273 (direct line)LINRADDARNIL