That's great to hear.
Just as a FYI, bitstreaming audio is cool in that your receiver will display DTS, AC3, TrueHD etc... but it's not actually the best way to go. In order to be able to play back all material (23.976, 24, interlaced etc...) optimally and judder free you need to be able to make slight adjustments to the audio stream. When bitstreaming this is not possible but if your audio codec (LAV) decodes the streams on the HTPC then you can use the JRiver video clock feature. The decoded audio streams are then sent as PCM to the receiver. No quality is lost and you get perfect playback with no dropped frames.
Anyhow, for now just enjoy and maybe another time we can move to the next level