Brifter
Actually, Campy brifters work just fine with Shimano rear. A $35 dollar part "shiftmate" works very well. I find Campy brifters an advantage over the Shimano counterpart as Handlebar bags are no problem. The front dérailleur is non-indexed, can be non-Campy and can be feathered or micro adjusted. Most important, Campagnolo is re-buildable as Shimano may not.
Richard