Yes I have a set of CH Pro Pedals USB and they work fine in Aces High with my Cougar stick (the toe brakes can be rather useful for tight taxiing)
I also have a set of TM Elite rudder pedals for older games like Falcon 4.0 and Flanker 2.0 which do not support more than one controller like AH does. The TM Elite pedals plug into the Cougar's gameport connector and then the PC see's the whole rig as one device. Most new games however support more than one controller. For Aces High you probably won't find a better setup than the CH Pro Pedals and a Cougar.
