Mrs BambooTom bought me a laptop "backpack".
It has a padded compartment for the laptop and two other compartments for
other things I want to carry on.
Plus about a hundred pockets for other things like the pwr supply and whatever else I need.
I dont travel without it and absolutly love it.
Here are a few links I looked up for ye.
My pack is a targus and it is similar to this, I think mine is last years model.
http://www.targus.com/us/product_details.asp?sku=TXL617
others to consider
http://www.ebags.com/backpacks/lapto....cfm?N=2003825
http://www.spireusa.com/
http://www.booqbags.com/index.html
http://www.meritline.com/laptopbackpack.html

Happy Flying
TR