Be aware that Thrustmaster is soon to release the HOTAS Warthog. Designed off the A-10C stick, not only is it 10-15 years newer in technology compared to the Cougar, it's also a dual throttle setup more appropriate for the F/A-18.
The Warthog stick is expected to cost $400-500 compared to the $150-200 a Cougar can be found at in stores. However, many (dare I even say most) have found the pots in the Cougar to be very shaky and wear poorly requiring hardware updgrades that can add another $200-300 to the stick. The A-10 stick is using hall effect sensors, so it's too early to know if there will be other problems, but it should be immune to the pots problems of the Cougar.
I desperately want to replace my X-52, but am personally holding out for the Warthog stick.