I briefly owned the Bel Canto Dac2. While I thought it was a good sounding dac, it was easily bested by the PS Audio DLII. ANd as mentioned above, the DLIII does provide balanced output which takes it up a notch. Something I found annoying about the Bel Canto dac was the input and outputs on opposing sides. It was a pain to place in my rack. A minor quibble but it bugged me.
The PS Audio also offers USB input. I haven't used it but it's there.