Hm. maybe I'll actually use the RaspberryPi as a little WoL thing.
The new server needs to be accessed while people are out... so maybe have the Pi monitoring people's locations? When they leave the house, it sends a WoL packet to the server so it isn't idling when people are at home.
I'll leave the shutting down manual though, in case I actually need access while I'm at home.
Ooh! Or maybe just monitor the home WiFi to see who's (or rather who's not) connected. Don't need their exact location.