Could someone please recommend a high-performance CPU cooler that isn't huge and bulky, is compatible with the upcoming Z200 motherboards, and is within the $100 range?
I haven't seen any bracket dimensions yet for the Z200. I would imagine that the Corsair 212 Evo would be a good bet. If the included bracket doesn't work, you could most likely make one and mount it. Sorry I didn't have a better answer.
There are no sizes released yet, but it can be assumed as from the Z97 and Z170 mounts where practically the same. For the 100$ range, the Corsair H100 or H110 are great dual 120 mm water loops.