http://www.harborfreight.com/bicycle-lift-95803.html
These are cheap, and they work great. I have had tri bikes, road bikes, and my 33 lb mountain beast on there, no problems. The only issue is that you can’t just grab it off the hook and be out the door in 15 seconds. It take 60 seconds or so to get down. For my commuter that I read regularly in the summer, I use this: