Paul,
I've had luck with Tioga Suefoot 8 platforms on my commuter. I paid about $60 USD for from e-bike stop:
http://www.ebikestop.com/tioga_suref...ack-PD2510.php

They come with two sets of pins-flt and and sharp-I ended going with the flat pins. They really are grippy I also considered the MKS Grip Kings:
http://www.rivbike.com/products/show...g-pedal/14-053

The only reason I went with the Tiogas is because the Grip Kings didn't come in black.