I have used wirewrap socket strips also, longer pins that can be wirewrapped to and then hav e pololu's male terminated crimp pins slid onto for board to board and board to panel connectors.http://www.marcospecialties.com/product.asp?ic=SIP20L
You can see a field of them on the vertical board here where the signals from a MAX7221 were broken out to go to 8 widely spaced digits, and one can see the multicolored cables are plugged onto the backs of more of them.
The LEDs were soldered in place and wirewrapped directly onto. Only 1 LED did not work and had to be replaced (overheated most likely).
A duemilanove is temporarily wired in after a loose wire smoked a promini.