Are you aware that Myth trunk now supports the new (non-free) NVidia video API - VDPAU.

That means that an FE with a £30 fanless graphics card will do H264 HD with no CPU usage to speak of

And my BE uses BIOS wakeup and WoL to stay down and keep power usage down. (Nowhere near as little as consumer electronics but...)

We don't do commercial flagging - we just press 4<right> and we're done.