I was thinking a little bit about an enclosure for my boards. First I wanted to use this on: http://www.hammondmfg.com/pdf/1551R.pdf . But this is quite small and I did not get the PCB shrunk down enough. So I ended up with using the Sick of Beige standard (http://dangerousprototypes.com/docs/Sick_of_Beige_standard_PCB_sizes_v1.0). There are also some other cases in which the PCB would now fit easy.

The PCB has now also Mounting holes for M3 screw (old Rev M2.5) and a power Jack instead of the screw terminal.