So last night I removed the existing distro and installed XBMC so that I could try and play a specific video file (a blu-ray DVD rip).
Th install was quick and faultless (ever heard a M$ user say that ?) and in half an hour the video was playing.
I'm now thinking that the Pi shutdown needs a bit of tweaking so I'm going to start looking into making a hardware power controller. What I want is a single button that starts and stops the Pi; first thoughts are a relay that, once activated, holds itself on and a shutdown script that uses a GPIO pin to release the relay (might need two relays, not drawn the circuit yet).
Got a busy weekend but will press on in any spare moments.