I have a cheapy wheel and pedals I got with F3 that "works", but is nothing compared to the Wheel I got for GT5. That thing was both cheap AND stellar in performance. My son has the next wheel up in the cheap seats, which he also got for F3, it's junk and doesn't even work now.
The DFGT(?-the red ring one) wheel was a stroke of genius that Forza and MS both missed the boat on. The way it works, how it's supported in game...
I haven't found anything for this side of the world with similar bang for the buck. I am looking still, but I don't have the ability to spend the kind of cash needed for a good wheel/pedal set for Forza land, at least not yet.
I can tell you that so far it's been my experience that anything with that label with the mad cat on it is best left in the package at the store. Sad to say, but I haven't had decent luck, performance or satisfaction from anything I have ever had with their name on it... But they seem to be one of the few lower priced alternatives available.