I've been auditioning digital cables and have listened to all the ones you mention except for the HT. Additionally, the Acoustic Zen mc2, and the Nordost silver shadow, have also been auditioned. The Nirvana has been the clear winner, with the d60 coming in second. Not surprisingly, the Nirvana is fairly costly, but if you want the best. The Acoustic Zen is what I'd recommend if you can't get the Nirvana. Best thing to do, is pick out a couple in your price range, and call Cable Co. and borrow them.
