I've got a couple of Serfas Bike armor cases and they are HUGE !!!, so big they barely fit into the back seat of the car and don't fit the boot. Great protection but really hard to manoveure around.

Don't underestimate the size of the Serfas, they look medium sized which is deceiving.

http://www.pezcyclingnews.com/?pg=fullstory&id=2227

I've just ordered picka packworks bags as replacements, as they are much more manageable and compact.

http://www.bicycling.com/article/0,6...6835-1,00.html

http://flickr.com/photos/ewwhite/set...7605378425108/