I have a Yamaha RX-V765 7.2 and NHT N-3B (classic 3-way speakers) front speakers. Rear speakers are Polk RM8's but I'll probably substitute my old NHT Zero's and use the Polks for side speakers. Center channel is also an RM8 which is not currently connected, but I'll probably leave that as is once it is. Right now I'm connecting to the receiver via HDMI cable from a Geforce 210 video card. I'm looking at this sound card as a good combination of price and performance - HT-Omega Claro. Opinions, suggestions welcome.