I didn't want to screw around trying to save a few bucks making generic/universal sensors work, so I got 3 (1 had already been replaced) from these guys:
http://www.maxspeed-motorsports.com/15182.html
At the time they had just about the best price I could find for sensors with OEM type connectors, $99 each front or rear. I've got ~6k on them so far and no problems.