Very nice, detailed review. Too bad about the CPU overhead, but those people lucky enough to be running quad-core already have plenty of CPU to spare.
Any chance of seeing a comparison with the D2 vs. D2X?
One thing - on page 9, just below the backplate picture, is this sentence: 'The Xonar sound card also lacks support for EAX versions above 3.0...' This should be EAX above 2.0. I didn't see this mistake anywhere else in the article.