One more thing I don't see mentioned before is that the MkI has 2 IDE channels while the MkII has 1.

Theoretically this means that you could (in a stationary set-up, as there's no space for them
inside the emepg) add another two disks for a total of 4 on a MkI. I have no idea if the software
can support it (It'd have to look at one or two more partitions for songs) nor if the power supply is
capable of servicing two additional disks...

/Michael