UnknowingFool writes "I'm about to go on a whirlwind trip with my laptop. Currently I'm using a generic laptop bag, but it's not really made for trips like this. I want to see if I can get a good notebook backpack and wanted to know what experiences traveling geeks here have had with notebook backpacks. My criteria: 1) Around $50 2) Functional enough to be used after my trip as a generic backpack 3) Tough enough to survive hauling through airport, yet comfortable enough to endure wearing for hours 4) Enough pockets for my chargers, cables , etc." I've been impressed with some bags from Targus; any good suggestions out there?