left crank arm snapped in half and the left pedal was damaged in the crash. I really liked the Power Grips because I could wear just about any shoe instead of being limited to my clipless shoes and still get good power out of the setup.
When I replaced the pedals, I wanted something a bit nicer than the Power Grips stock pedals. I went with the MKS Sylvan Touring pedals after deciding that I didn't like the 1-sided MKS Sylvan Road pedals. In fact, you can use any pedal as long as it has a place to put the 3 screws pictured in this post. The Power Grips come with mounting hardware and I think the spacing between screws is fairly standard.
Riding my fixie in Tallahassee would be nearly impossible without a foot retention system. I have some hills around here with a 10%+ grade and although they are not very long, it would be impossible to get up them with my 48/15 gear ratio.