I ride the MKS pedal/clip and leather strap set-up from IRO. They're a little rough to get into with New Balance 574's on, but other shoes with more "street oriented" soles are no problem at all. I've only had them for a little while, but so far, so good.
I also have a pair of Bontrager MTB pedals with their "composite" clips and nylon straps on my converted fixie. I would say they work fairly well. They are easy to get into, but your feet slip around while in the cages.