I'm in the same boat. Been lookin, never findin. There seems to be a pretty big market for them, its amazing nobody makes them. The first company to do so will make a killing. YA HEAR THAT CH PRODUCTS, MICROSOFT, LOGITECH, AND EVERY OTHER GAME CONTROLLER MANUFACTURER? THE FIRST COMPANY TO MAKE ONE WILL BREAK THE BANK! TAKE A HINT!!!!
On the other hand, if you are using your sim to touch up on your real flying skills, it may be better without the force feedback. I don't have much real flying experience, in fact I have only flown a real plane once on an intro flight. But I found the real plane to be very easy to fly after flying around in the simulator. I figure if you can keep the needles where you want them when you can't feel the airplane, it makes it that much easier when you can. It keeps you on your toes. Its kind of like a baseball player. He'll swing with two bats while warming up on deck. Then when he goes up to hit, the bat feels super light.