>That's why I suggested to offer even the spare parts separately (e.g. the
>rails that are essential for the system). The (experienced) user could
>decide how to built his system.

That's exactly what I was suggesting. Great idea :)

If a power supply was available that was pre-wired for X modules with leads,
that would avoid the problem of it being dangerous. It seems to me that the
power supply seems to be something that keeps coming up on this list....
inexperienced people trying to figure out how to build one isn't the best
idea!