The CH products are famous, but I haven't had a chance to try one yet.
Mostly because I'm perfectly happy with my Saitek Cyborg
http://www.saitekusa.com/usa/prod/cyborgold.htm
It comes with a little tool for adjusting its size just right, has a twist- grip for rudder control and for me, just does the job very nicely.
There are force feedback models, too, but the OS X HID Manager doesn't yet support that (or does it?).
Gameplay will be much more fun and understandable with joystick. Learn to use the little hat control to look around quickly and you get a much better idea of where you're getting shot from.
J