I didn't see any installation option to change the server workgroup and as all my other PCs (not all W7) are happily working on a different common name, can I easily change the WHS to that name without re-installing? I came across this...
http://www.logicalflux.com/2012/01/changing-the-workgroup-on-windows-home-server-2011-video/
...so does this seem a good idea to do or not?