(D)SLR users will know and respect the Lowepro name, and this Vertex 100 AW bag is a steal at it's current price. Stores your camera equipment, and a laptop (check the dimensions here http://products.lowepro.com/product/Vertex-100%20AW,2072.htm
Cheapest new elsewhere is £79.99.
This is a limited stock item I'm guessing, so be quick! I would buy one myself, but I'm looking for the Vertex 200 AW, as my laptop is too big for the 100 AW