Best Game Controller for Mac-Xbox 360 Wireless Gaming Receiver?

I have a PC as well as a Xbox 360 and have played games on both. Now that I'm becoming more of a Mac person though I will get into some mac gaming. I'm trying to avoid having to buy too many controllers. Most of the games I'm fine with a gamepad but I like car racing games so a wheel controller would be nice. What I'm looking at is possibly the Xbox 360 Wireless Gaming Receiver for Windows so that I can use the same controllers on both my XBox 360 and PC. My question, has anyone tried using this on a Mac?
If not I am interested in any suggestions of good gaming controllers for the Mac.

From what I remember, the XBOX 360 controller for Windows has a USB plug on it but isn't a true USB device. So I don't think it would work on a Mac (including use with USB OverDrive). But I could be wrong.

OS X Xbox 360 controller driver ( http://tattiebogle.net/index.php/ProjectRoot/Xbox360Controller/OsxDriver)

I also have a 360 and a Mac, and I haven't tried this myself, but looks like it does work.

yes xbox 360 controllers work find on mac...