>His design uses 10uF and 0.1uF capacitors for regulator stabilisation
>and supply filtering throughout the board.  He has found low leakage
>variants of the 10uF size in the Farnell cattledog, but not for the
>0.1uF ceramics.  Does he need to look for them or do ceramics have a low
>leakage anyway?

Cerams are generally FAR lower leakage than electrolytics, BUT I have had
some problems with 0.1uF (and no other value) shorting out in 5-10V
circuits. Multiple vendors... I'm switching to 0.047s unless I can't do it
without the 0.1.