The Speedline Sealed Bearing Integrated Headsets are some of the best on the market.  They are designed for the "Campy®" style of Integrated head tubes. 

1 1/8" - 1.5" Pro Tapered Headsets are Typically used on Pro size and Larger Frames with Tapered Head Tubes. They can be used with 1.5" or 1 1/8" forks and are used with 1 1/8" Stems.