PM
You might as well get the Wireworld Supernova III glass toslink cable. (new glass toslink much better vs old plastic fiber)
After a couple days break-in on system II, I connected this to my Bel Canto DAC II as author did in 6 moons review, I was using the very highly regarded AZ Mc2. I have slightly different findings, in my system Mc2 has slightly more treble energy and SN III was slightly darker sounding a bit more relaxed. Which is better will depend on your other gear, but other than the slight tonal difference the SN III seems about equal to Mc2 in other respects. I could live happily with SN III.
Advantages are SN III costs 1/3 the price, and is lighter, thinner, more flexible which can be useful for cable management. I think many are wondering why they spent hundreds on digital cables now, heh heh
BTW, for the price I think you will be very hard pressed to beat the Bel Canto Dac II, especially if you find used one at Audiogon.
I'm sure you've seen the reviews and the comparisons.