just my 2 cents worth regarding the dock feature - I recently acquired one of those stupid good/cheap Pure i20s, and as much as the quality of the built-in Dac is vastly superior to the Toslink output from Aex into another decent enough DAC (Citypulse), the "convenience factor" of having to read the Pod/phones display while using the remote is, well, not very convenient.
Unless you've got an overwhelming need for all the extra connectivity of device like the iDac or W4S DAC1, etc., the simple "black box/ brick" approach of the uDac or Musical Fidelity vDAC has great appeal.
For folks using or considering a Mini as dedicated server, the Peachtree model that makes most sense to me is the DACiT . At only $50 more than the MF or W4S models, and with enough inputs to avoid conflict with buss format of external storage, it'd be the one I'd look at. Of course for the full tilt Hi-Rez crowd the varying resolutions supported by the 3 different inputs might be an issue:
Inputs & Sampling Frequencies
USB -> Supports 44.1, 48, and 96 kHz. Does not support 88.2, 176.4, or 192 kHz.
TosLink S/PDIF (optical) -> Supports 44.1, 48, 96, and 192 kHz. Does not support 88.2 or 176.4 kHz.
Coaxial S/PDIF (electrical) -> Supports 44.1, 48, 88.2, 96, 176.4, and 192 kHz.
While the dimensions don't exactly match those of the latest Mini, they're close enough not to look too awkward stacked nearby.
Anyone here tried this one?