I am runnng 2.0 personally. I use my PC as a tv.
Audio wise I run a Yamaha AS-700 amplifier which IMO is absolutely awesome.
Speaker wise I run Acoustic Energy Neo3 V2's which are also good, but I will upgrade them at some point.
One of the speakers does not output any bass frequencies, I thought this was down to my current amp but upgraded and it still does it, out of warranty now :/