Huh. I was just considering switching my home server to WHS.
For years I've been running my home network as a Windows Domain, currently using Windows Server 2008. But my domain controller died, and I've been entirely unsuccessful in getting the replacement server to become a new DC in the domain, so my security is all failing.
So my plan was to trash all the needless complexity, and use WHS for what I expected to be a more straightforward configuration.
Anybody have better suggestions for running a house-wide network with decent security?
 Although they don't use the PDC/BDC terminology any more, it's still actually the way the domain operates internally. At any given time, one DC is still designated the Primary, and because that server isn't working right, I can't get it to surrender control to the new one. And the new one, since it can't sync changes to the old one, refuses to accept more domain members, etc.