I'm using 202 as well, same firewire as yours...DAC202 is already a very very good DAC, it'll take much more money to upgrade to something that can make a slight difference from the 202.   But the source is important, the INT204 is actually DDC, it converts DSD to PCM then feeds your DAC202...

Hey, any Cardas users out there.  I just bought two Clear M power from an authentic dealer (outside of US), and the first reaction I got when I open the box was the color difference.  This type of blue is lighter, with a hint of purple.  The surface feels difference from before where it should...

Wireworld Starlight is so far the best, acknowledged by many users, but costs lot more than Cardas.... I'm using Cardas USB because all of my cables are this brand, in general the sound difference between the two brands are Cardas=more music, the meds are more forward for vocals, Wireworld...