I like the Origin line. I've got the X11. I bought it a couple of years ago, so I don't even know if that's a current model or not. Will you be controlling the volume directly on the HTPC or through a receiver/amp? I ask because if the latter, then having big volume knobs are useless. Personally, I think any sort of non-power button/knob (and LCD) on an HTPC case is a waste anyway (that's what a remote is for), but that's just me.