http://www.8complex.com/simulationstation/
Really a cheap project, as long as you've got a welder, grinder, drill, drill press, hacksaw, circular saw, and a conduit bender available. Total construction time is right around 10 hours, give or take. I had a welder malfunction when trying to refeed the wire and had to take apart the entire handle to find out what was up... took a good hour. Other then that, everything went smooth, and I only have minor cuts & burns to show for it! Only one small fire while welding, just a mat I was kneeling on. Please note... my welding skill SUCKS! Don't mind the crappy welds.
Now that I am playing the game with this wheel, I really see what everyone was raving about it for. It offers incredible control, and now being set up properly, it's quite comfortable to use, as well. I'm definitely impressed and I am really not sure if I'll ever be able to play well with a standard controller again.
Oh, and it's still on the slider, so anyone can slide in and adjust the seat to use it.