We've used a variety of manufacturers.
The ones I currently have were purchased from Jameco
3-pin Housing - 157382
http://www.jameco.com/webapp/wcs/sto...oductId=157382
(the photo is incorrect)
Male pin - 145357
http://www.jameco.com/webapp/wcs/sto...oductId=145357
Female pin - 100765
http://www.jameco.com/webapp/wcs/sto...oductId=100765
Crimper - 159265
http://www.jameco.com/webapp/wcs/sto...oductId=159265
You have a choice of different size housings:
http://www.jameco.com/webapp/wcs/stores/servlet/CatalogSearchResultView?langId=-1&storeId=10001&catalogId=10001&searchType=k&searc hValue=100765&categoryId=304026
You can use Molex connectors available at DigiKey and elsewhere, but the male pins are a little too long and must be cut short for the housing to fit snugly to IFI females in the Victors and Spikes.
3-pin Housings - WM2801-ND
Male Pins WM2515-ND
Female Pins WM2554-ND
P.S.
Rickertsen2 Sorry, I didn't mean to imply you couldn't get other .1 connectors through DigiKey. I only meant to share my experience with the Molex ones. We have and do use other manufacturers connectors as well. I just don't have those part numbers within easy reach.