Digitalcamerareview.com has tested a backpack from Slappa that is suitable for photography equipment and a notebook. The backpack is called Slappa Ballistix Aura Pro-Tour and costs about $150.
The problem with such camera bags / backpacks is that they are often not very comfortable, but digitalcamerareview.com claims that the Slappa Ballistix Aura Pro-Tour backpack is one of the most comfortable backpacks/camera bags they have ever reviewed. The backpack holds a 15.2″ notebook, a mid-range DSLR camera, a few lenses and other camera equipment so there is plenty of room in it.
Digitalcamerareview.com gives the Slappa Ballistix Aura Pro-Tour backpack a very good verdict because it has lots of space and is very comfortable. The only downsides are that it is not fully weather sealed and the notebook sleeve does not fit very well in the backpack.
Read the full review of the Slappa Ballistix Aura Pro-Tour backpack here.