Hi experts...

I like the features of the Atv - and all the avalible hacks.
I was thinking of making a setup like this.

ATV with an enabled USB port
ATV sound-output connected to my stereo
and connected to this 8" touchscreen:


Then I would mount the screen on the wall in a nice frame an from there access all my music on the ATV with a simple touch on the screen.

Is this setup possible? Will it requery me to install OsX onto Atv? Will i requery any conversion of the HDMI signal to VGA?