Cross bikes are more usually lumped in with road bikes because the frame, wheels, bars, levers, etc., are the same. Think of cyclocross as riding a road bike with knobby tires on a steeplechase course. If you're shopping for parts, you look in the road categories.
They can be set up with a flat bar but some races may prohibit flat bars and require drop. My pink bike in my avatar on bikejournal is a cross bike with flat bars. Bill's has a cross bike with road tires that he uses for road riding. They're wonderfully versatile bikes.
Frends know gud humors when dey is hear it. ~ Da Crockydiles of ZZE.