I've got a Lowepro Micro Trekker 200SE. It's not laptop capable, but I thought you might appreciate the general feedback.
I've had it for 6 or 7 years I think. I currently get a EOS 40D plus 28-135mm attached, 10-20mm, 75-300mm, 100mm and 50mm lenses in, plus battery charger/lead, Ipod charger, mobile phone and charger in the main section. The pockets will then get packed with three batteries, two or three filters, cleaning cloths and a blower, small torch and travel documents! Oh and quite often a book strapped in via the external pocket strap too. Ok, it's a tight squeeze and not exactly useable for getting kit out for pictures, but this is my travel (i.e. flying) packing not my walking about packing
Customs often go to town on looking through it all, but it has never been refused boarding
The best search was one customs officer who said "Please can you show the camera actualy takes images?" (this was about 5 weeks after 9/11). Having got it out, turned it on and for the heck of it pointed it at him he said "You are not allowed to take pictures in the customs hall"!!!!!!!!
Anyway, it is a great backpack. As you can see it takes a fair amount of kit and is easy to carry. It goes most places with me in normal use and is showing no sign of wear or tear to zips/straps/padding etc. It is just rather grubby these days. I'm looking to replace it
only because I can get a slighter larger model which is airline carry-on approved with a laptop pocket (I really have reached capacity these days) and a laptop pocket would be good.
A trusty workhorse, worth every penny/cent/currencyofyourchoice would be my simple description