USB Cable: Oyaide, Cardas, Shunyata....

 I use a Shunyata Venom in my system and it is very good. I think the Wireworld is better but more money. I also thought about one of the higher end Audioquest. But in the end I think that the Shunyata is probably the best for anywhere near the money. USB is not the best interface for audio. I would rather invest in an all in one unit like an  Aurender or the Bluesound Vault 2 .

Look for a used Curious USB Cable.  Very nice sounding cable and reasonable prices.

I second the Curious cable. Keep it as short as you can
Alan

$200 budget... what is the cheapest LPS for a mac mini??

I had the Venom USB and recently upgraded to the Curious.  The Curious is better. However, I enjoyed the Venom and still think that it is a great cable, much better than its price might indicate.

Dave