Here's my current project...
To give some background.... I live in two houses, mothers and fathers, and would like remote access to both machines at any given time, but would rather not leave them powered on 24/7.
I am looking at hooking up something like a relay or opto-isolator unit into the power trigger on the motherboard, to short the pins when triggered by a GPIO output from the Pi. With some backend scripting, I am going to set this up to respond to a http request from my server (or independently send keepalive requests to my server and check if the response from the server contains a request for poweron). So, this will allow me to remotely power on each machine independently without having to be at the machine, and without the machine actually having to be powered up or in a state of sleep, allowing for zero power usage when it's not needed to be on.
When I get paid from work I'll set this up when I get the chance, and probably post on here when it's done
