Watcher:
I find that a " permanent " dc supply is increasingly usefull on the workbench just like the mains outlets.
Just cant decide on the most useful voltage level to have around..5v, 12v...
A good power supply for Arduino and general micro-controller needs a current limit facility.
The limit only needs to be up to 2A and adjustable.
Any higher current then another 5V outlet to the higher current devices.
Tom... 