You know, on the jumpers, I buy SIP and DIP headers in strips of 72 from
Digi-Key and cut them off as needed.
Doesn't everyody? I've also been know to use those as pin headers for the
IDC sockets (like you find on, say, IDE cales). Not as good as the proper
boxed headers, easier to mis-mate, but OK on stiff I uild for myself.
-tony