Re: electrical circuits
Hmmm... Kinda sounds like this package that I saw years ago in DuPont.
If not, I know that Bailey makes software that does Electrical diagrams (mostly DCS stuff though)
<font color=green>"On a long enough timeline, everyone's life expectancy drops to zero."</font color=green> - Fight Club
"The lights below
You know they'll bleed forever
Get back as the cores blow
Let me fall..." - Dismantled, "Cornered"