As my "commuter bike" goes increasingly over budget, I'm getting more and more worried about locking it up. Do any of you have any experience with locking skewers? I've been looking at these two:

http://www.thebikebiz.com/Pinhead_Lo.../com-pin01.htm

http://www.thebikebiz.com/ProductDet...%2DTRK%2DPIT01

the pitlock skewers look really nice and easy to use, but they're pretty pricey. the pinhead ones look like they'd be a pain, and they're still kinda expensive (I'd want the seatpost lock too)