Guys,
The more I learn about noise control the more I see why people go for upsamplers, upgraded clocks, the Monarchy DIP, etc. If you erradicate noise in your system you won't believe how good your digital sounds. I see those devices as ways to circumvent noise. This weekend I finally conquered noise in my system (it was the AIWA transport). My system is sounding so unbelievably clean!!! Digital is really pleasant, I can tell. I hooked my modded 1200 yesterday and I do miss the much lower noise floor digital brings...
Work on noise and vibration control and get a great digital cable like the i2digital ( wwwi2digital.com ). Like captain Picard says: "Beyond belief..."