Baranyi, unit is transpot only. Only upgrade was an increased hard drive - holds 360 CD's. I have a quality DAC to connect it to, so wasn't motivated to get their DAC.
In terms of lead times, last I heard it was a few weeks but that could change with increased demand - small operation. You should speak to them to know for sure.
I'll be sure to pass along my comments after I've had some time with it.
Deshapiro, I'm not sure what your options are WRT to taking advantage of music on a seperate hard drive. You should call them.