I ride Campy Record Pro-Fit Plus Pedals. I've got 'em on all six of my bikes. Prior to this, I rode Time.
I like the Pro-Fits because they are very light, very adjustable and VERY easy to clip in and out of. Not a lot of float adjustment (6%) though. If you need LOTS of float these may not be your pedals. They work very well for me though as I am always in the Fort Lauderdale traffic and I can clip in and out of these smoothly and quickly...every time. I never pop out though, when sprinting.
I also am a big Campy Fan...so I may be a touch predjudiced....