I got the Korchmar C4146 from MarvGolden.com. Not too expensive and works pretty well in the Saab. It's only about a $100 so its not too hard on the wallet. They have some other nice ones on there if you want to spend a little more. Some of the guys have the ones with wheels on them. I think they use those mostly up in the northeast though because not a lot of guys have them in Houston.