Do you like racing games? But not quite so much you'd buy a serious racing wheel system? The Xbox Wireless Speed Wheel might be exactly what you're looking for. Just be prepared to put up with one deeply annoying exclusion.
I put myself into the "loves a good racing game, not hardcore about it" category. Overall, I find the bog-standard Xbox 360 controller to be fine for enjoying a game now and then, but something a little more immersive would be great. With the recent release of the Xbox 360 Wireless Speed Wheel at an entirely reasonable AU$59.95, this seems like a golden ticket.
The controller has a U-shaped design that gives a good steering wheel feel in the hands, and tilting the control left and right gives you a fast, confident steering response in-game. Perfectionists will be able to find a few niggles to complain about compared to cockpit options on the market, but for those playing for general entertainment this is a real pleasure to work with.