Go to Rivendell.com. They have a good selection of MKS platform pedals, which are similar to the best Campy models of the 1970's. They also have some MKS BMX pedals and "sneaker" pedals, which have the advantage of working well with any shoe. The MKS BMX pedal will "lock" to a soft-soled shoe just as securely as a racing pedal, yet releases your foot easily when you get to a stop sign or red light.
Of course, if you don't use racing pedals, you lose a lot of "cool" points. And, BMX pedals on a road bike have negative "cool" points. But, if you ride a bike for enjoyment, not to impress your buddies, BMX pedals are well worth considering.