Ajenti - Linux home server admin panel
ajenti.org
ajenti.org
For a home user there should be bare minimum of task oriented steps available. Like - add a service, set up dyndns or any other reverse dns service, add a file to download queue, perform backup, etc. Configure network shares without knowing anything about samba or bonjour. Set up streaming to your devices without diving into terminology of upnp or airplay. Etc.
Proprietary synology DSM (http://www.synology.com/dsm/index.php) is great, but it's proprietary. It is probable that there are some alternatives which I have not seen due the great vastness of the internet.
This appears to be a splash of Munin/RRD (for monitoring) with a load of stuff for editing settings and running things. Remotely. As root.
I'm sure it's great but it's a big fat hack waiting to happen. Munin and SSH will do for now.