[Zaphod]

Dolby TrueHD is automatically decoded in the PS3 and then is transmitted over HDMI as PCM. So basically if you want the HD audio, all you need is a receiver that can accept multi-channel PCM over HDMI. However, one thing worth noting. There is no DTS MA decoding for the PS3 nor is there a way to transmit that audio track over HDMI. So if in the future the PS3 has the ability to decode it onboard then it will probably transmit it over PCM as well. If it in the future has the ability to transmit the DTS MA track over HDMI you would need a receiver and a v1.3 compliant HDMI cable to transmit and decode it from the PS3.