I just bought a logitech wingman rumblepad (USB). It took some tweaking, but I was able to set it up. I'm runnig FMS version 2.0 Beta 7 on a laptop with Windows XP.
Make sure you choose the joystick setup.
You'll have to manipulate the sticks alot to get rid of the jitters (sensitivity). You'll also need to re-assign some of the channels, since the defaults will not be a common sick flying mode.