Hey Michael - I was thinking...
Remote control of the volume could be an issue; I'm guessing that some soundbars have their own, learn-able IR codes that you could program into your TV remote. OTOH, most computer monitors probably DON'T have IR remote control capability. However, your TV might have an analog line-out that IS controlled by the TV remote volume. I'd look closely at the TV capabilities, how you're going to hook it up and how you're going to control the volume.
You (and others) are probably way ahead of me on this.
