Follow up - I ordered some Keywin pedals with a track adapter from them. These are normally $175 or $155 w/o the adapter. I paid $99.95 with no extra charge for track adapter and cleats. They were a little slow with communication and tracking info at first but the guy actually called and left a message after I whined a little bit, which was a nice touch.
All in all a good transaction and I would use them again.